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ICs for VCR
AN3969K
Electronic volume IC for HiFi VCR
s Overview
The AN3969K is a stereo electronic volume IC which has been developed for a HiFi video, enabling to switch four inputs of a single channel and to input from microphone.
19.10.3 22 12
Unit: mm
1.100.25 3.450.25
* Both L/R-independent volume control and balance control are available * Switching four inputs with a single channel is possible * Electronic volume off function * Mic. mixing function
1
11
4.500.25
s Features
6.350.30
1.778 0.900.25 Seating plane
0.50.1
7.620.25 15 3 to +0.10 0.35 - 0.05
s Applications
* HiFi VCR
SDIP022-P-0300A
1
AN3969K
s Block Diagram
ICs for VCR
In2 (R)
12
Input SW
11
In1 (R)
In3 (R)
13
10
EVR On/Off
Bal.
Bal. CTL
In4 (R)
14
9
R/bal. CTL
GND
15
Mic. off Mic. on
Bal. Vol.
8
L/main CTL
VREF
16
VREF 1/2VCC (typ. 2.5 V)
EVR
EVR on 7 EVR off EVR out (R)
Mic. in
Rev.
17
EVR
EVR on 6 EVR off EVR out (L)
Mic. On/Off
18
Vol.
5
Mix. out
In4 (L)
20
Mic. off Mic. on
VCC
19
4
Vol./bal.
3
INSEL B
In3 (L)
21
2
INSEL A
2
Input SW
In2 (L)
22
1
In1 (L)
ICs for VCR
s Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 Description In1 (L-ch.) input pin Input selection control (CTL) A pin Input selection control (CTL) B pin EVR individual/balance mode CTL pin Mix. output pin EVR (L-ch.) output pin EVR (R-ch.) output pin Main volume adjustment pin for individual mode L-ch./balance mode 9 Balance volume adjustment pin for individual mode R-ch./balance mode 10 EVR On/Off CTL pin Pin No. 11 12 13 14 15 16 17 18 19 20 21 22 Description In1 (R-ch.) input pin In2 (R-ch.) input pin In3 (R-ch.) input pin In4 (R-ch.) input pin GND pin VREF (1/2VCC) pin Mic. input pin Mic. On/Off CTL pin VCC (5 V) pin In4 (L-ch.) input pin In3 (L-ch.) input pin In2 (L-ch.) input pin
AN3969K
s Absolute Maximum Ratings
Parameter Supply voltage Power dissipation *1, *2 Operating ambient temperature *1 Storage temperature *1 Symbol VCC PD Topr Tstg Rating 6.0 186 -20 to +75 -55 to +150 Unit V mW C C
Note) *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2: The power dissipation shown is the value for Ta = 75C.
s Recommended Operating Range
Parameter Supply voltage Symbol VCC Range 4.5 to 5.5 Unit V
s Electrical Characteristics at VCC = 5 V, pin 8 = 3 V, pin 9 = 3 V, Ta = 25C
Parameter Circuit current 1 Circuit current 2 EVR out level L EVR out level R EVR out distortion ratio L EVR out distortion ratio R Symbol IVOL IBAL VEOL VEOR TEOL TEOR Conditions EVR individual CTL mode with no signal EVR balance mode with no signal Typical input Typical input Typical input Typical input Min 14 19 -23 -23 Typ 18 25 -20 -20 Max 23 31 -17 -17 0.2 0.2 Unit mA mA dBs dBs % %
Note) 1. Unless otherwise specified, set a mode to In1 input selection, EVR on, EVR individual CTL, mic. off and input a typical input that is In1 input, VIN = -20 dBs, fIN = 1 kHz and L/R simultaneous input. 2. Unless otherwise specified, measure EVR out L for L-ch. parameter and EVR out R for R-ch. parameter.
3
AN3969K
ICs for VCR
s Electrical Characteristics at VCC = 5 V, pin 8 = 3 V, pin 9 = 3 V, Ta = 25C (continued)
Parameter EVR out max. output L EVR out max. output R EVR out S/N L EVR out S/N R EVR max. level L EVR max. level R EVR attenuation level L EVR attenuation level R Symbol Conditions Min 1 1 70 70 8 8 -12 -12 -12 -12 -22 -22 Typ 10 10 -10 -10 -10 -10 -20 -20 Max 12 12 -65 -65 -8 -8 -7 -7 -50 -50 -18 0.2 -18 -70 -75 -75 -60 Unit dBs dBs dB dB dB dB dB dB dBs dBs dB dB dB dB dBs % dBs dB dB dB dB VEOML Output level at pin 8 = 5 V and distortion ratio = 1% VEOMR Output level at pin 9 = 5 V and distortion ratio = 1% NEOL NEOR Ratio to VEOL to In1, RG = 18 k, JIS A and RL = 10 k Ratio to VEOR to In1, RG = 18 k, JIS A and RL = 10 k
VMAXL Ratio to VEOL with typical input and pin 8 = 5 V VMAXR Ratio to VEOR with typical input and pin 9 = 5 V VMINL Ratio to output with VIN = -10 dBs, pin 8 = 0 V and pin 8 = 3 V VMINR Ratio to output with VIN = -10 dBs, pin 9 = 0 V and pin 9 = 3 V
EVR balance characteristics 1-L VBAL1L EVR balance mode, pin 8 = 5 V, pin 9 = 2.5 V EVR balance characteristics 1-R VBAL1R EVR balance mode, pin 8 = 5 V, pin 9 = 2.5 V EVR balance characteristics 2-L VBAL2L EVR balance mode, pin 8 = 5 V, pin 9 = 1.25 V, ratio to VBAL1L EVR balance characteristics 2-R VBAL2R EVR balance mode, pin 8 = 5 V, pin 9 = 3.75 V, ratio to VBAL1R EVR balance characteristics 3-L VBAL3L EVR balance mode, pin 8 = 5 V, pin 9 = 0 V, ratio to VBAL1L EVR balance characteristics 3-R VBAL3R EVR balance mode, pin 8 = 5 V, pin 9 = 5 V, ratio to VBAL1R Mix. out level Mix. out distortion ratio Mic. mix. level Mic. mix. muting ratio Crosstalk 1 between channels (RL) Crosstalk 2 between channels (LR) Crosstalk between inputs VMIX TMIX VMIC Mix. out measurement in a typical input Mix. out measurement in a typical input Mix. out measurement with mic. on mode, mic in = -32 dBs, 1 kHz
VMUTE Mic. off mode, mic.IN = -32 dBs, 1 kHz, mix. out measurement, ratio to VMIC CCH1RL In1R = -10 dBs, L-ch. measurement, DIN audio, ratio to VEOL is -10 dB. CCH1LR In1L = -10 dBs, R-ch. measurement, DIN audio, ratio to VEOR is -10 dB. CIN1 In2, In3, In4 = -10 dBs, mix. measurement, DIN audio, ratio to VMIX is -10 dB.
Note) 1. Unless otherwise specified, set a mode to In1 input selection, EVR on, EVR individual CTL, mic. off and input a typical input that is In1 input, VIN = -20 dBs, fIN = 1 kHz and L/R simultaneous input. 2. Unless otherwise specified, measure EVR out L for L-ch. parameter and EVR out R for R-ch. parameter.
4
ICs for VCR
AN3969K
s Electrical Characteristics at VCC = 5 V, pin 8 = 3 V, pin 9 = 3 V, Ta = 25C (continued)
* Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter Input selection CTL A (low)
* *
Symbol DINAL Pin 2 input DINAH Pin 2 input DINBL Pin 3 input DINBH Pin 3 input
Conditions
Min 0 3.5 0 3.5 0 3.5 0 3.5 0 3.5
Typ 0 -20 -20
Max 1.5 5 1.5 5 1.5 5 1.5 5 1.5 5
Unit V V V V V V V V V V dB dBs dBs
Input selection CTL A (high) Input selection CTL B (low)
* *
Input selection CTL B (high) EVR individual CTL mode EVR balance mode EVR on mode EVR off mode Mic. on mode Mic. off mode EVR out L/R difference EVR off level L EVR off level R
DVOLL Pin 4 input (low) DBALH Pin 4 input (high) DEONL Pin 10 input (low) DEOFFH Pin 10 input (high) DMONL Pin 18 input (low) DMOFFH Pin 18 input (high) VEOLR Typical input, pin 8, pin 9 = 3 V, ratio of EVR out L to R VEOFFL EVR off mode, typical input, EVR out L measurement VEOFFR EVR off mode, typical input, EVR out R measurement
Note) 1. Typical input = (In1 input, VIN = -20 dBs, fIN = 1 kHz, L/R simultaneous input) 2. *: In1 input selection mode: pin 2 = low, pin 3 = low, In2 input selection mode: pin 2 = high, pin 3 = low In3 input selection mode: pin 2 = low, pin 3 = high, In4 input selection mode: pin 2 = high, pin 3 = high
s Terminal Equivalent Circuits
Pin No. 1
Pin 1 11 12 13 14 20 21 22 VCC
Equivalent circuit
Description In1(L-ch.) input: Audio signal Typical = -20 dBs (1 kHz)
Pin voltage (typ) (V) 2.5
200 50 k VREF 2.5 V 1 k
5
AN3969K
s Terminal Equivalent Circuits (continued)
Pin No. 2 3 Equivalent circuit Description Pin 2: input selection CTL A; Pin 3: input selection CTL B
ICs for VCR
Pin voltage (typ) (V)
VCC 6 k 16 k 200 30 k 20 k 10 k
2
10 k VCC 6 k 16 k
3
200 30 k
20 k 10 k
10 k
4
VCC 13 k 9 k 200 30 k 1 k
Vol./bal. CTL
4
5 6 7
Pin 5 6 7
VCC
Pin 5: mix. input; Pin 6: EVR (L-ch.) output; Pin 7: EVR (R-ch.) output
50 50
2.5
8
VCC 15 k 8 200 15 k
L-ch. CTL (individual mode) Main CTL (balance mode)
6
ICs for VCR
s Terminal Equivalent Circuits (continued)
Pin No. 9 VCC 15 k 9 200 15 k Equivalent circuit Description R-ch. CTL (individual mode) Balance CTL (balance mode)
AN3969K
Pin voltage (typ) (V)
15 k
15 k
10
VCC 5 k 17 k 200 30 k 50 k
EVR On/Off CTL
10
11 12 13 14 15 16
Refer to pin 1.
Pin 11: In1 (R-ch.) input; Pin 12: In2 (R-ch.) input; Pin 13: In3 (R-ch.) input; Pin 14: In4 (R-ch.) input GND VREF
Refer to pin 1.
0 2.5
VCC 200 25 k 16 200 25 k 21 k 29 k
17
VCC 1 k 23.3 k 25 k 1 k 25 k VREF 2.5 V 1 k
Mic. input
2.5
17
7
AN3969K
s Terminal Equivalent Circuits (continued)
Pin No. 18 Equivalent circuit Description Mic. On/Off CTL
ICs for VCR
Pin voltage (typ) (V)
VCC 18 k 18 4 k 200 30 k 1 k
19 20 21 22
Refer to pin 1.
VCC Pin 20: In4 (L-ch.) input; Pin 21: In3 (L-ch.) input; Pin 22: In2 (L-ch.) input
5 Refer to pin 1.
8
ICs for VCR
s Application Circuit Example
AN3969K
-20 dB
-20 dB
In2 (R) 1 F
12
Input SW
11 1 F
In1 (R)
1 F
-20 dB
In3 (R)
13
10
EVR On/Off Low EVR on High EVR off R/bal. CTL
Mic. off Mic. on
Bal. Vol.
1 F
-20 dB
Bal. CTL
In4 (R)
14
Bal.
9
GND
15
8
47 k L/main CTL
VREF 1/2VCC (typ. 2.5 V)
EVR
EVR on 7 -20 dB EVR off 47 k EVR out (R) 1 F
VREF
16 22 F
1 F
-20 dB
Mic. in
-32 dB Rev.
17
EVR
EVR on
Vol. 6 1 F EVR off
EVR out (L)
-20 dB
Mic. On/Off Low mic. on High mic. off VCC
18
5 1 F
Mix. out
19 Mic. off Mic. on
4
Vol./bal. Low High Vol. Bal.
1 F
-20 dB
In4 (L)
20
3
INSEL B A B Low High Low In1 In3 High In2 In4 INSEL A
1 F
-20 dB
In3 (L)
21
2
-20 dB
Input SW
-20 dB
In2 (L) 1 F
22
1 1 F
In1 (L)
9

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