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TECHNICAL NOTE
Video/Audio Interfaces for TV and DVD Recorders
NTSC-PAL Video I/O Interface
BH7625KS2
Description BH7625KS2 is a video signal selector with two built-in sync separation circuits, and two sync detector circuits. It includes 5-composit, 5-Y, 5-C, and 1-component video signal inputs that can be selected freely for each output. Additionally, The existance of the signal outputted from outside can be judged by only this chip.
Features 1) Built-in 5-video, 5-Y, 5-C and 1-component inputs 2) Input terminal of the S2 standard suitability 2 3) I C-BUS control (High impedance when power supply off) 4) Built-in 0/3dB switch AMP CVBS OUT, C OUT 5) Built-in 0/6dB switch AMP Y/CVBS OUT 6) Built-in sync separation circuit 2 circuits SYNC OUT, V SYNC OUT 7) Built-in sync detector circuit 2 circuits 8) Built-in 3 LPF circuits 4 order + TRAP
Applications DVD-Recorder, visual instrument, etc
Absolute maximum ratings (Ta=25C) Parameter Symbol Power Supply Voltage V Power dissipation Pd Operating temperature range Topr Storage temperature range Tstg 1 Reduced by 13 mW/ C at 25 C or higher.
Limits 7.0 1300 1 -25 +75 -55 +125
Unit V mW C C
Operating range (Ta=25C) Parameter Symbol VCC1 VCC2 VCC3 Supply voltage DVCC SYNC VCC VCC
Limits
Unit
4.5 5.5
V
Ver.B Oct.2005
Electrical characteristics (Unless otherwise specified, Vcc1, Vcc2, Vcc3, DVCC, SYNC VCC, VCC=5V, Ta=25C) Limit MIN. TYP. MAX.
Item Whole VCC Circuit Current VCC STBY Circuit Current VCC PD Circuit Current SW Part CVBS OUT Cb OUT CVBS OUT Cb OUT Y/CVBS OUT Cy OUT Y/CVBS OUT Cy OUT C OUT Cr OUT C OUT Cr OUT CVBS OUT Cb OUT CVBS OUT Cb OUT Y/CVBS OUT Cy OUT Y/CVBS OUT Cy OUT C OUT Cr OUT C OUT Cr OUT CVBS OUT Cb OUT Y/CVBS OUT Cy OUT C OUT Cr OUT SW Part CVBS OUT Cb OUT CVBS OUT Cb OUT Frequency Characteristic 1 Frequency Characteristic 2 Voltage Gain H Voltage Gain L Voltage Gain H Voltage Gain L Voltage Gain H Voltage Gain L Voltage Gain H Voltage Gain L Voltage Gain H Voltage Gain L Voltage Gain H Voltage Gain L Maximum Output Level Maximum Output Level Maximum Output Level
Symbol
Unit
Conditions
ICC ICCST ICCPD
71 9.38
95 12.5 0
128 16.9 10
mA mA A
Normal Condition Standby Condition Power Down Condition
GV1H GV1L GV2H GV2L GV3H GV3L GV4H GV4L GV5H GV5L GV6H GV6L VOM1 VOM2 VOM3
2.4 0.7 5.5 0.7 2.4 0.7 2.2 0.9 5.3 0.9 2.2 0.9 2.6 2.6 2.6
2.9 0.2 6.0 0.2 2.9 0.2 2.7 0.4 5.8 0.4 2.7 0.4 3.0 3.0 3.0
3.4 0.3 6.5 0.3 3.4 0.3 3.2 0.1 6.3 0.1 3.2 0.1
dB dB dB dB dB dB dB dB dB dB dB dB Vpp Vpp Vpp
Vin=1.0Vpp , f=100kHz, LPF OFF Vin=1.0Vpp , f=100kHz, LPF OFF Vin=1.0Vpp , f=100kHz, LPF OFF Vin=1.0Vpp , f=100kHz, LPF OFF Vin=1.0Vpp , f=100kHz, LPF OFF Vin=1.0Vpp , f=100kHz, LPF OFF Vin=1.0Vpp , f=100kHz, LPF ON Vin=1.0Vpp , f=100kHz, LPF ON Vin=1.0Vpp , f=100kHz, LPF ON Vin=1.0Vpp , f=100kHz, LPF ON Vin=1.0Vpp , f=100kHz, LPF ON Vin=1.0Vpp , f=100kHz, LPF ON f=100kHz(10kHz), THD=1% f=100kHz(10kHz), THD=1% f=100kHz(10kHz), THD=1%
GF11 GF12
1.5
0.5 38
0.5 27
dB dB
Vin=1.0Vpp Gain=3dB Vin=2.0Vpp Gain=0dB f=6.75MHz/100kHz(LPF ON) Vin=1.0Vpp Gain=3dB Vin=2.0Vpp Gain=0dB f=27MHz/100kHz (LPF ON)
2/16
Item CVBS OUT Cb OUT Y/CVBS OUT Cy OUT Y/CVBS OUT Cy OUT Y/CVBS OUT Cy OUT C OUT Cr OUT C OUT Cr OUT V-SW Y-SW C-SW Frequency Characteristic 3 Frequency Characteristic 1 Frequency Characteristic 2 Frequency Characteristic 3 Frequency Characteristic 1 Frequency Characteristic 3 Difference In Switch Voltage Gain Difference In Switch Voltage Gain Difference In Switch Voltage Gain Switch Crosstalk Switch Crosstalk Switch Crosstalk
Symbol GF13 GF21 GF22 GF23 GF31 GF33 GV GY GC CTSV CTSY CTSC CTCH ZCIN
Limit MIN. 1.0 1.5 TYP. 0 0.5 38 1.0 1.5 1.0 0.5 0.5 0.5 0 0.5 0 0.0 0.0 0.0 60 60 60 60 12.5 18.0 MAX. 1.0 0.5 27 1.0 0.5 1.0 0.5 0.5 0.5 55 55 55 55 23.5
Unit dB dB dB dB dB dB dB dB dB dB dB dB dB k
Conditions Vin=1.0Vpp Gain=3dB Vin=2.0Vpp Gain=0dB f=7MHz/100kHz (Through) Vin=1.0Vpp Gain=6dB Vin=2.0Vpp Gain=0dB f=6.75MHz/100kHz (LPF ON) Vin=1.0Vpp Gain=6dB Vin=2.0Vpp Gain=0dB f=27MHz/100kHz (LPF ON) Vin=1.0Vpp Gain=6dB Vin=2.0Vpp Gain=0dB f=7MHz/100kHz (Through) Vin=1.0Vpp Gain=3dB Vin=2.0Vpp Gain=0dB f=6.75MHz/100kHz (LPF ON) Vin=1.0Vpp Gain=3dB Vin=2.0Vpp Gain=0dB f=7MHz/100kHz (Through) f=100kHz, Vin=1.0Vpp f=100kHz, Vin=1.0Vpp f=100kHz, Vin=1.0Vpp f=4.43MHz, Vin=1.0Vpp f=4.43MHz, Vin=1.0Vpp f=4.43MHz, Vin=1.0Vpp f=4.43MHz, Vin=1.0Vpp
V-SW Y-SW C-SW
VYC Channel Crosstalk C IN Input Impedance SYNC DETECTOR Part Minimum sync separation level V SYNC OUT Output Voltage H V SYNC OUT Output Voltage L VD Pulse Width
SLMIN VVSH VVSL TWV1 Vcc 0.5
0.08 Vcc 0.1 0.1 185
0.15 Vcc 0.5
Vpp V V sec
LPF Condition No Load No Load
111
HD Pulse Width C SYNC OUT Output Voltage H C SYNC OUT Output Voltage L
TWH1 VVCH VVCL Vcc 0.5
4.5 Vcc 0.1 0.1 Vcc 0.5
sec V V
Vin 1.0Vpp, Standard staircase signal LPF Condition 111 Vin 1.0Vpp, Standard staircase signal LPF Condition 111 No Load No Load
3/16
Item SYNC DET OUT Output Voltage H SYNC DET OUT Output Voltage L I2C-BUS Control S1/S2 DET Detection Level H S1/S2 DET Detection Level M S1/S2 DET Detection Level L ADR Input Voltage H Input Voltage L Input Impedance SCL SDA Input Voltage H Input Voltage L Input Bias Current PD Input Voltage H Input Voltage L Input Impedance Guaranteed design parameter Differential Gain Differential Phase Y S/N
Symbol VSDH VSDL
MIN. Vcc 0.5
Limit TYP. Vcc 0.1 0.1
MAX. Vcc 0.5
Unit V V
Conditions No Load No Load
DLH DLM DLL
3.4 1.3 0.0 1.9
Vcc 2.5 0.7
V V V
16:9 Squeeze Signal 4:3 Letter Box Signal 4:3 Video Signal, No Signal
VIHADR VILADR ZINADR
2.0 0.0 65 100
Vcc 1.0 135
V V k Pull Down Resistance
VIHIIC VILIIC IBIIC
2.0 0.0 0 1
Vcc 1.0 10
V V A
VIHPD VILPD ZINPD
2.0 0.0 65 100
Vcc 0.7 135
V V k Pull Down Resistance
DG DP SNY SNC
0.5 0.5 70
% deg dB
CVBS OUT, Y/CVBS OUT, C OUT CVBS OUT, Y/CVBS OUT, C OUT CVBS OUT, Y/CVBS OUT 50% White signal Filter : 100kHz 6MHz C OUT 100% Chroma signal Filter : 100Hz 500kHz
C S/N
70
dB
4/16
Block diagram
Synctip Clamp Synctip Clamp Synctip Clamp Synctip Clamp Synctip Clamp Pedestal Clamp
Synctip Clamp Synctip Clamp Synctip Clamp Synctip Clamp Synctip Clamp
Pedestal Clamp
BIAS BIAS BIAS BIAS BIAS
Sync LPF Sync Sepa
Clamp Pulse
SYNC DET1
C.Sync V.Sepa
Logic
SYNC DET2
Sync LPF Sync Sepa
Blocks inside the dotted line operate at a standby mode Fig.1
5/16
Equivalent circuit Pin NO./Pin Name (Input/Output) 14. 10. 6. 51. 11. 13. 15. 17. 19. 40. 42. 44. 46. 48. 2. 4. 7. 9. GND1 GND2 GND3 GND4 CVBS1 CVBS2 CVBS3 CVBS4 CVBS5 Y1_Cy Y2 Y3 Y4 Y5 C2 C3 C4 C5 Input Range(V) Terminal Voltage (V)
Function
Equivalent Circuit
GND terminal
0
Signal input terminal The video signal input pins is a sync-tip-clamp. 1.4
Signal input terminal The video signal input pins is a resistance bias. Signal input terminal 2.9
50. C1_Cr
This pin is input of chroma signal1 (C1) and Cr. Change resistor bias and pedestal clamp. Signal output terminal The gain can be selected by 2 I C-BUS.
2.9
25. CVBS/Cb OUT 21. Y/CVBS/Cy OUT 23. C/Cr OUT
0.7 2.1
Signal input terminal 38. Cb The video signal input pin (Cb) is a pedestal clamp.
52. S1/S2 DET1 1. S1/S2 DET2 5. S1/S2 DET3
Signal input terminal The state of inputted signal can be read by I2C-BUS.
43. PD
PD terminal Sets power down mode.
0
18. TEST1 16. TEST2
TEST terminal Shorts to GND.
0
6/16
SSC terminal 26. SSC1 33. SSC2 Makes reference voltage for sync separation.
29. C SYNC OUT 30. V SYNC OUT
C, V sync signal output terminal 5.0 Outputs sync separation signal.
Generate DET voltage terminal 28. DETC1 31. DETC2 Turns the MM duty pulse into the DC voltage.
MM adjusting terminal 27. MMT1 32. MMT2 Determines the MM time constant by the outside capacitor and resister.
Signal output terminal 41. SDET OUT1 39. SDET OUT2 These pins output sync detecting signal. 0
Reference voltage terminal 8. VREF A capacitor is connected to opposite GND. 2.8
ADR terminal 25. ADR The pin to set slave address 90H (91H) or 92H (93H). 0
I2C-BUS Clock input terminal 36. SCL The pin is input clock of I2C-BUS. Uses pull up resistor.
I2C-BUS Data terminal 35. SDA
2 The pin is data of I C-BUS. Uses pull up resistor.
7/16
Description of operations
CLP Clamp Pulse CLP is pedestal clamp pulse of component input, It is the same timing as C-SYNC.
Video signal input The input signal is different in sync det1 block and in sync det2 block for selecting inside selecter.
SYNC LPF The high frequency noise of the input signal is shut out. Cut off frequency can be chosen by I2C-BUS from 8 steps.
Detection The smoothing voltage by DET block is compared with inside threshold voltage. And the existance of the video signal is judged.
SSC1
SYNC DET1 CLP Sync LPF Sync Sepa Clamp Pulse
C.Sync C.Sync V.Sepa V.Sepa
0.033uF
C SYNC OUT
V SYNC OUT
M.M
DET
SYNCOUT1 DETC1 0.1uF 390k
MMT1 DET The output from MM, it's smoothing by about 100k and outside capacitor. (Smoothing means turning the duty of MM output into the DC voltage.)
100pF
Input to the MM block
SYNC DET1 block is the same as C SYNC OUT signal.
MM1 terminal
Comparator level VCC/2 Fixation
Compose the outside application so that duty may become 50% 60% when a video signal is inputted normally.
Output to the MM block (Input to the DET block)
This is able to monitor DETC terminal in the OPEN state (removed capacitor)
Fig.2
The detection sensitivity level of this LSI can be different depending on the tuner used. Therefore, change the detection level setting by selecting LPF cut off and the outside part value of MMT (27 pin, 32 pin) for each tuner when using this feature.
8/16
Description of operations I2C-BUS Control input specifications I2C-BUS Format (WRITE MODE) S SLAVE ADDRESS A DATA1 A DATA2 A P
S : Start Condition A : Acknowledge P: Stop Condition b7 Slave address DATA1 DATA2 1 5 Y-OUT SEL b6 0 4 Component b5 0 3 INSEL LPF ON/OFF b4 1 2 GAIN 0/6dB b3 0 1 STBY b2 0 L2 T2 b1 ADR L1 T1 # Don't Care * * At power on, BH7625KS2 becomes " * "condition. ADR and S1/S2 DET terminal inputs value's must be set between start and stop condition and must be consistent, as a change in value may result in poor operation. B0 R/W L0 T0
SELECT INPUT SWITCH SETTING MODE Explanation Slave Address (write mode) set by ADR pin 0 : Address is "90H", when ADR ADR pin input is set to L 1 : Address is "92H", when ADR pin input is set to H R/W READ/WRITE Setting Mode 0 : WRITE 1 : READ Y-OUT SEL SW output setting 0:L * 1:H
INSEL5 4
INSEL3 1
Y-OUT SEL
Component
LPF ON/OFF Stand-By
LPF ON/OFF setting 0:L OFF * GAIN0/6dB 1:H ON Stand-By Mode setting 0 : L (move) 1 : H(standby) In standby condition, activate only the circuits in the block diagram.
Explanation SYNC DET2 input setting 00 : Y1/Cy * 01 : Y1/Cy 10 : CVBS2 11 : Y2 Change setting of input selector SW. Refer to the next page SW correspondence table. Component SEL SW output setting 0 : L (Composit) * 1 : H (Component) AMP GAIN setting 0 : L (0dB) * 1 : H (6dB or 3dB)
INPUT SW CONTROL table INSEL 3 0 0 0 0 1 0 0 0 0 1 INSEL 2 0 0 1 1 0 0 0 1 1 0 INSEL 1 0 1 0 1 0 0 1 0 1 0 Y-OUT SEL 1 1 1 1 1 0 0 0 0 0 0 1 Component 0 0 0 0 0 0 0 0 0 0 1 1 CVBS OUT CVBS1 CVBS2 CVBS3 CVBS4 CVBS5 CVBS1 CVBS2 CVBS3 CVBS4 CVBS5 Cb Cb Y OUT CVBS1 CVBS2 CVBS3 CVBS4 CVBS5 Y1 Y2 Y3 Y4 Y5 Y1(Cy) Cb C OUT C1 C2 C3 C4 C5 C1 C2 C3 C4 C5 C1(Cr) C1(Cr) CSYNC etc. CVBS1 CVBS2 CVBS3 CVBS4 CVBS5 Y1 Y2 Y3 Y4 Y5 Y1(Cy) Y1(Cy)
9/16
Explanation SYNC SEPA LPF Cut-off conditioning 000 : LOW (Normal) 001 : 010 : 011 : 100 : 101 : 110 : 111 : High *
L2-L0
T2-T0
Explanation DET Output decision comparator threshold conditioning. 000 : LOW (Normal) 001 : 010 : 011 : * 100 : 101 : 110 : 111 : High
I2C-BUS Format (READ MODE) SLAVE A DATA1 A/N P ADDRESS S : Start Condition A : Acknowledge A/N : NO acknowledge P: Stop Condition B7 b6 b5 b4 b3 b2 b1 S Slave address DATA1 1 SD1 0 0 SD2 1 0 SD3 0 ADR V-DET2 # Don't Care
b0 R/W V-DET1
* ADR and S1/S2 DET terminal inputs value's must be set between start and stop condition and must be consistent, as a change in value may result in poor operation. Explanation Slave Address (read mode) Set by ADR pin. 0 : Address is "91H", when ADR pin input is set to L 1 : Address is "93H", when ADR pin input is set to H The signal SDET OUT is read out. 0 : H (VIDEO signal ON) 1 : L (VIDEO signal OFF) Explanation The state of S1/S2 DET1 S1/S2 DET3 is read out. 00 : 4:3Video signal 0 0.7V 01 : 4:3Letter Box signal 1.3 2.5V 11 : 16:9Squeeze signal 3.4V Vcc
ADR
SD1 SD2 SD3
V-DET1, V-DET2
Power down state Power down state occurs when PD terminal is LOW. Internal circuit becomes non-active in this state. LOW Power down state HI Active state
10/16
Application circuit
Synctip Clamp Synctip Clamp Synctip Clamp Synctip Clamp Synctip Clamp Pedestal Clamp
Synctip Clamp Synctip Clamp Synctip Clamp Synctip Clamp Synctip Clamp
Pedestal Clamp
BIAS BIAS BIAS BIAS BIAS
Sync LPF Sync Sepa
Clamp Pulse
SYNC DET1
C.Sync V.Sepa
Logic
SYNC DET2
Sync LPF Sync Sepa
Fig.3
11/16
Description of external components Video signal terminal Clamp terminal Use a capacitor above 0.01F. If a capacitor is too small, a video signal may become distorted. Video signal input terminal Bias terminal Input impedance is 20k (TYP) with this terminal. Therefore, set so that a chroma signal may pass fully. S1/S2 DET terminal
Chroma signal input
Chrsignal input terminal
75
Static electricity breakdown Add countermeasure diode
R2
LPF
R1
Set up higher than 100k S terminal standard.
Fig.4
R2: Overvoltage transient can affect the static electricity protection diode connected to the VCC side. Therefore, add a limit current resistor (R2). SSC terminal This terminal sets the sensitivity of the sync-tip level detection. When a capacitor is large, sensitivity becomes low, but becomes too sensitive when the capacitor is small. But, when it is too small, it becomes poor at the noise. MMT Adjusting the value of the outside RC, and duty of the pulse output in DETC is set. (Pulse can be monitored when the capacitor of DETC is removed.) Set duty to 50% 60% in the state so that there is no noise in the input signal. The duty is not equal to the same time constant (RC=constant) when R is small. DETC When a capacitor is small, detection reaction becomes fast, When it is large, detection reaction becomes slow. Pulse is smoothed by the output impedance of 100k and a capacitor connected to this terminal. The status of the video signal is monitored by this DC voltage value.
12/16
Reference data
3 2.5
2
DIFFERENTION PHASE[deg]
DIFFERENTIAL GAIN[%]
1.5
1
0.5
0 -50 -25 0 25 50 75 100
TEMPERATURE[ ]
Y S/N[dB]
TEMPERATURE[
]
TEMPERATURE[ ]
Fig.5 Differential Gain
4
Fig.6 Differential Phase
150
Fig.7 Y S/N ratio
MAXIMUM OUTPUT VOLTAGE[V]
3.8
125
C S/N[dB]
3.4 3.2 3 2.8 2.6
CIRCUIT CURRENT[mA]
3.6
100
75
50
2.4
-50 -25 0 25 50 75 100
4.4
4.6
4.8
5
5.2
5.4
5.6
-50
-25
0
25
50
75
100
POWER SUPPLY VOLTAGE[V]
TEMPERATURE[
]
TEMPERATURE[ ]
Fig.8 C S/N ratio
15
0.1 0.08
Fig.9 Maximum output voltage (Temperature dependence)
150 140 130 120 110 100 90 80 70 60
Fig.10 VCC Circuit current (Supply voltage dependence)
12.5
0.06
STBY CURRENT[mA]
10
PD CURRENT[uA]
0.04 0.02 0 -0.02 -0.04 -0.06 -0.08
7.5
5
2.5
0 4.4 4.6 4.8 5 5.2 5.4 5.6
-0.1 4.4 4.6 4.8 5 5.2 5.4 5.6
50
POWER SUPPLY VOLTAGE[V]
POWER SUPPLY VOLTAGE[V]
TEMPERATURE[
]
Fig.11 VCC Circuit current (STBY) (Supply voltage dependence)
Fig.12 VCC Circuit current (PD) (Supply voltage dependence)
4
Fig.13 VCC Circuit current (Temperature dependence)
MAXIMUM OUTOUT VOLTAGE[Vpp] TEMPERATURE[ ]
3.8 3.6 3.4 3.2 3 2.8 2.6 2.4
STBY CURRENT[mA]
TEMPERATURE[ ]
PD CURRENT[uA]
POWER SUPPLY VOLTAGE[V]
Fig.14 VCC Circuit current (Temperature dependence)
Fig.15 VCC Circuit current PD (Temperature dependence)
Fig.16 Maximum output voltage (Supply voltage dependence)
13/16
MINIMUM SYNC SEPERATION LEVEL[Vpp]
MINIMUM SYNC SEPERATION LEVEL[Vpp
90
90
30
INPUT IMPEDANCE [k ]
4.4 4.6 4.8 5 5.2 5.4 5.6
85
85
25
80
80
75 70
75
20
70
15
65
65
60 -50 -25 0 25 50 75 100
60
10 4.4 4.6 4.8 5 5.2 5.4 5.6
TEMPERATURE[ ]
POWER SUPPLY VOLTAGE[V]
POWER SUPPLY VOLTAGE[V]
Fig.17 Min synchronous isolation level (Temperature dependence)
30
Fig.18 Min synchronous isolation level (Supply voltage dependence)
10
GAIN 3dB
Fig.19 CIN input impedance (Supply voltage dependence)
10 GAIN 3dB 180 135 GAIN 0dB
100C 25C
180 135
GAIN 0dB
5.6V
0
0
INPUT IMPEDANCE[k ]
25 -10
90
90 45 0 -45 -90 -135 -180 100E+06
5.0V
GAIN [dB]
20
-20
PHASE 3dB PHASE 6dB
4.4V
GAIN [dB]
5.6V 5.0V 4.4V
45 0 -45 -90
-10 PHASE 3dB -20 PHASE 6dB
-50C
-30 15 -40
CVBS/Cb OUT TEMP=25 ,LPF=OFF
-30
100C 25C
-40
-50C CVBS/Cb OUT VCC=5V ,LPF=OFF
-135 -180 100E+06
10 -50 -25 0 25 50 75 100
-50 100E+03
1E+06
10E+06
-50 100E+03
1E+06
10E+06
TEMPERATURE[
]
FREQUENCY [Hz]
FREQUENCY [Hz]
Fig.20 CIN input impedance (Temperature dependence)
10
GAIN 3dB
Fig.21 Frequency characteristic (Supply voltage dependence)
10
GAIN 3dB
Fig.22 Frequency characteristic (Temperature dependence)
10
GAIN 6dB GAIN 0dB
180 135 90
5.6V
0
GAIN 0dB
0
GAIN 0dB
0
-10
GAIN [dB]
5.0V
GAIN [dB]
GAIN [dB]
5.6V
-10
100C 25C
-10
PHASE 0dB
5.0V 4.4V
45 0 -45 -90 -135 -180 100E+06
-20
4.4V
-20
-50C
-20
PHASE 6dB
YCVBSCy OUT TEMP=25 ,LPF=OFF 5.6V 5.0V 4.4V
-30
CVBS/Cb OUT TEMP=25 ,LPF=ON
-30
CVBS/Cb OUT VCC=5V ,LPF=ON
-30
-40
-40
-40
-50 100E+03
1E+06
10E+06
100E+06
-50 100E+03
1E+06
10E+06
100E+06
-50 100E+03
1E+06
10E+06
FREQUENCY [Hz]
FREQUENCY [Hz]
FREQUENCY [Hz]
Fig.23 Frequency characteristic (Supply voltage dependence)
10
GAIN 6dB
Fig.24 Frequency characteristic (Temperature dependence)
Fig.25 Frequency characteristic (Supply voltage dependence)
180 135
100C 25C -50C
10
10
GAIN 6dB GAIN 0dB GAIN 6dB GAIN 0dB
0
GAIN 0dB
0
90
0
5.6V 5.0V
-10
GAIN [dB]
GAIN [dB]
45 0
-10
-20
PHASE 6dB PHASE 0dB
100C 25C -50C
GAIN [dB]
4.4V
-10 -20
100C 25C -50C
-20
-30
-45 -90 -135 -180 100E+06
-30
YCVBSCy OUT TEMP=25 ,LPF=ON
-30
YCVBSCy OUT VCC=5.0V ,LPF=ON
-40
YCVBSCy OUT VCC=5.0V ,LPF=OFF
-40
-40 -50 100E+03
-50 100E+03
1E+06
10E+06
-50 100E+03
1E+06
10E+06
100E+06
1E+06
10E+06
100E+06
FREQUENCY [Hz]
FREQUENCY [Hz]
FREQUENCY [Hz]
Fig.26 Frequency characteristic (Temperature dependence)
Fig.27 Frequency characteristic (Supply voltage dependence)
Fig.28 Frequency characteristic (Temperature dependence)
14/16
Cautions on use 1. 2. Numbers and data in entries are representative design values and are not guaranteed values of the items. Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for sufficient margins when determining circuit constants. 3. Absolute maximum ratings Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times where the absolute maximum ratings may be exceeded. 4. GND potential Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the GND at any time, regardless of whether it is a transient signal or not. 5. Thermal design Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd) in actual states of use. 6. Short circuit between terminals and erroneous mounting Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components on the circuits, can damage the IC. 7. Operation in strong electromagnetic field Using the ICs in a strong electromagnetic field can cause operation malfunction. 8. Supply voltage of operation Although basic circuit function is guaranteed under normal voltage operation (4.75V 5.25V), ensure each parameter complies with appropriate electrical characteristics, when using this device. 9. The outside parts must be layout nearest to the IC and lines from amplifier must be short. 10. The coupling capacitor must be layout nearest to the IC and each pin. 11. VCC for this IC should use the same power source. Impedance should be connected as low as possible for each VCC pin and for each GND pin.
Thermal derating characteristics
POWER DISSIPATION : Pd[mW]
1400 1200 1000 800 600 400 200 0 -50 -25 0 25 50 75 100 ] 125 150 AMBIENT TEMPERATURE [
Fig. 29
15/16
Selection of order type
B
H
7
6
2
TYPE
5
K
S
2
BH7625KS2
SQFP-T52
12.0 0.3 10.0 0.2
39 27 26

Container Quantity Direction of feed
0.125 0.1
0.5
Tray(with dry pack) 1000pcs Direction of product is fixed in a tray.
12.0 0.3 10.0 0.2
40
52 1
14 13
1.4 0.1
0.1 0.1
0.65
0.3 0.1 0.15
Unit:mm)
1pin
Orders are available in complete units only.
The contents described herein are correct as of October, 2005 The contents described herein are subject to change without notice. For updates of the latest information, please contact and confirm with ROHM CO.,LTD. Any part of this application note must not be duplicated or copied without our permission. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams and information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. The products described herein utilize silicon as the main material. The products described herein are not designed to be X ray proof.
Published by Application Engineering Group
Catalog NO.05T394Be '05.10 ROHM C 2000 TSU
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog.
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