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W55RFS27T3B DATA SHEET SUPER-REGENERATION RF RECEIVER
Table of Content1. GENERAL DESCRIPTION ......................................................................................................... 2 1.1 1.2 Features............................................................................................................................. 2 W55RFS27T3B Pad Definition .......................................................................................... 3
1.2.1 1.2.2 1.2.3 1.2.4 Pad Description ................................................................................................................3 Clock Frequency Select (CKSEL) Setup ..........................................................................3 ID Setup ...........................................................................................................................4 Baseband Encoder Control Function Description .............................................................4
2.
SYSTEM DESCRIPTION............................................................................................................ 5 2.1 2.2 W55RFS27T3B System Block Diagram ............................................................................ 5 W55RFS27T3B Functional Description............................................................................. 6 W55RFS27T3B Absolute Maximum Ratings..................................................................... 7 W55RFS27T3B DC Characteristics .................................................................................. 7 W55RFS27T3B Ordering Information ............................................................................... 8 W55RFS27T3B Package Information ............................................................................... 8
3.4.1 3.4.2 Bonding Pad List ..............................................................................................................8 Bonding Pad Diagram ......................................................................................................9
3.
ELECTRONIC CHARACTERISTICS.......................................................................................... 7 3.1 3.2 3.3 3.4
4.
DESIGN INFORMATION .......................................................................................................... 10 4.1 W55RFS27T3B Reference Design.................................................................................. 10
4.1.1 4.1.2 4.1.3 TXOUT waveform...........................................................................................................10 Application Circuit for 6 Control Functions......................................................................11 Application Circuit for 4 Control Functions......................................................................12
4.2 4.3 5.
uC-Mode Control Signal .................................................................................................. 14 W55RFS27T Family FCC Certification............................................................................ 15
REVISION HISTORY ................................................................................................................ 16
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Publication Release Date:June 8, 2005 Revision A1
W55RFS27T3B
1. GENERAL DESCRIPTION
The Winbond W55RFS27T3B is a fully-integrated, S-R (Super-regeneration) RF transmitter with fullfunction baseband command encoder and a Winbond-patented, channel-sharing algorithm that supports up to three players simultaneously. As such, the W55RFS27T3B is suitable for R/C vehicles, toys, or wireless data communication applications. The W55RFS27T3B provides two input modes: uC-mode, for general-purpose, micro-controller interfaces with the RF transmitter; and manual-mode, for a 3-player, 6-function, baseband command encoder and RF transmitter. In manual-mode, the W55RFS27T3B works conveniently with up to three W55RFS27R3C chips to provide a simple, multi-player remote control capability with low cost and high performance. The S-R RF transmitter operates on 27 MHz, 35 MHz, 40 MHz, or 49 MHz with a default data rate of 2.5 KBPS, and it is compliant with FCC part 15 Subpart C 15.227(15.235) and ETSI 300 220-1, making it easier for wireless end products to get FCC and ETSI compliance approval. In addition, the W55RFS27T3B accommodates a wide range of operating voltages (2.2 V to 5.5 V), supports 2- or 3-battery R/C toy applications, and generates highly-efficient transmissions.
1.1 Features
* * * * * * Operating frequency: 27 MHz ~ 49 MHz Wide operating voltage: 2.2 V ~ 5.5 V Two input modes--uC-mode and manual-mode--for more flexibility (uC-mode) Transmission data rate up to 10 Kbps for 30%-70% duty cycle signals (manual-mode) Winbond-patented, channel-sharing algorithm that allows up to 3 players simultaneously on the same frequency band (manual-mode) R/C toy baseband control command encoder, supporting 4 or 6 functions: Forward, Backward, Left-turn, Right-turn, and 2 user-defined functions F1 and F2 (user-defined functions not available in 4-function mode) 15-dBm, high-efficiency transmissions (50 ) with minimum current consumption Power-down current consumption less than 1 uA Fewer external components required Compliant with FCC part 15 Subpart C 15.227(15.235) / ETSI 300 220-1 low-power and shortrange device requirements Operating temperature: 0C ~ 70C
* * * * *
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W55RFS27T3B
1.2 W55RFS27T3B Pad Definition
1.2.1 Pad Description
SYMBOL
PAD NO.
I/O
FUNCTIONAL DESCRIPTION
S3 S4 CKSEL0 TEST CKSEL1 ANT GND VDD RESET X1 X2 ID1 ID0 TXOUT S1/~TXD S2/~ENB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
I I I I I O Ground Power I I O I I O I I
Manual-mode input, internal pull-high Manual-mode input , internal pull-high Clock frequency select LSB (please see section 1.2.2 for setup) TEST=0 for 6-function mode, TEST=1 for 4-function mode Clock frequency select MSB (please see section 1.2.2 for setup) RF signal output. An external matching circuit is necessary for connecting with an antenna. Ground return path Power path RESET=0 resets whole chip, internal pull-high Input of internal crystal oscillator to connect to an external crystal Output of internal crystal oscillator to connect to an external crystal ID setting MSB (please see section 1.2.3 for setup) ID setting LSB (please see section 1.2.3 for setup) TXD Data output Manual-mode input or uC-mode: ~TXD, internal pull-high Manual-mode input or uC-mode: ~ENB, internal pull-high
1.2.2
Clock Frequency Select (CKSEL) Setup
(CKSEL1,CKSEL0)
CLOCK FREQUENCY
(0,0) (0,1) (1,0) (1,1)
27.145 MHz 35.48 MHz 40.68 MHz 49.86 MHz
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Publication Release Date:June 8, 2005 Revision A1
W55RFS27T3B
1.2.3 ID Setup
(ID1,ID0) (0,0) (0,1) (1,0) (1,1)
ID Player 1 Player 2 Player 3 uC- Mode
1.2.4
Baseband Encoder Control Function Description
INPUT PIN NAME
CONNECT TO
6-FUNCTION (TEST=0)
4-FUNCTION (TEST=1)
Default (pull high) S1 GND TXOUT Default (pull high) S2 GND TXOUT S3 S4
(Note: F Forward; B
F = 0, B = 0 F = 0, B = 1 F = 1, B = 0 L = 0, R = 0 L = 0, R = 1 L = 1, R = 0 F1 = 0 F1 = 1 F2 = 0 F2 = 1
F=0 F=1 B=0 B=1 L=0 L=1 R=0 R=1
Default (pull high) GND Default (pull high) GND
Backward; L Left-turn; R Right-turn; F1, F2
Two User-defined function)
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W55RFS27T3B
2. SYSTEM DESCRIPTION
2.1 W55RFS27T3B System Block Diagram
IDn
CKSEL
X1
X2
S1
Oscillation
/n
(27~49 MHz)
S2 Encoder S3 Control Circuit S4 POR PA ANT
$TXD $ENB
x
VDD
GND
TEST
RESET
TXOUT
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Publication Release Date:June 8, 2005 Revision A1
W55RFS27T3B
2.2 W55RFS27T3B Functional Description
The W55RFS27T3B provides two operating modes, Manual-mode and uC-mode, for remote control product development. In Manual-mode, the W55RFS27T3B encodes one of up to six functions for one of up to three players, modulates it with the on-chip RF power amplifier, and transmits it to the receiver(s) (e.g., W55RFS27R3C). This transmission occurs in the same frequency band for all players, as this frequency band is divided using a Winbond-patented, channel-sharing algorithm. Manual-mode supports up to six functions: Forward, Backward, Left-turn, Right-turn (for general R/C-vehicle control) and two user-defined functions F1 and F2. uC-mode provides a digital interface for any external micro-controller to control the S-R RF transmitter easily and efficiently. This interface uses two W55RFS27T3B pins: TXD (S1), to send data; and ENB (S2), to tell the W55RFS27T3B to enter and exit power-down mode, as needed. The transmitter meets FCC/ETSI regulations for 27 MHz, 40 MHz and 49 MHz S-R (Superregeneration) modulation, and it is compliant with FCC part 15 Subpart C 15.227(15.235) and ETSI 300 220-1, making it easier for wireless end products to get FCC and ETSI compliance approval.. In addition, the W55RFS27T3B accommodates a wide range of operating voltages (2.2 V to 5.5 V), supports 2- or 3-battery R/C toy applications, and transmits at 15 dBm very efficiently.
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W55RFS27T3B
3. ELECTRONIC CHARACTERISTICS
3.1 W55RFS27T3B Absolute Maximum Ratings
PARAMETER RATING UNIT
Supply Voltage to Ground Potential Applied Input/Output Voltage Power Dissipation (Ta = 70C) Ambient Operating Temperature Storage Temperature
- 0.3 to 6.5 - 0.3 to 6.5 150 0 to 70 -40 to 85
V V mW C C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.
3.2 W55RFS27T3B DC Characteristics
(VDD-VSS = 3 V, Ta = 25C; unless otherwise specified)
PARAMETER
Power Supply Operating Voltage Operating Current (uC-mode) Stand-by Current Input High Voltage Input Low Voltage Input Pin Pull-High Resistance TXOUT Output High Source Current TXOUT Current Output Low Sink
SYM.
VDD ITX ISBY VIH VIL RPH IOH IOL
CONDITIONS
MIN.
2.2
TYP.
150K -
MAX.
5.5 50 1 VDD 0.1*VDD -
UNIT
V mA A V V ohm mA mA
Continuous emission, VDD=5.5V
0.8*VDD VSS
Digital Input/Output Pin (S1, S2, S3, S4, ID0, ID1, MODE,CKSEL0,CKSEL1)
S1~S4, RESET VOH=0.7 * VDD VOL=0.3 * VDD
6 6
Crystal Oscillator Operation Frequency Oscillator Turn-On Time Transmitter Section Modulation Duty Cycle Transmission Data Rate Transmission Power MDYT RDTT PANT 50% Duty-cycle RZ Code 30 50 2.5 15 70 10 % Kbps dBm FXTL TOSC Fundamental type Over-tone type 27 49 1.0 3.0 MHz mS mS
Notes: (1). Crystal turn-on time depends on crystal type: fundamental or overtone type crystal. (2). Transmitter settling time depends on crystal type: fundamental or overtone type crystal.
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Publication Release Date:June 8, 2005 Revision A1
W55RFS27T3B
3.3 W55RFS27T3B Ordering Information
The W55RFS27T3B is available in two forms: Dice form and Wafer form
PART NUMBER PACKAGE REMARKS
W55RFS27T3B(H) W55RFS27T3B(W)
Dice form Wafer form
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3.4 W55RFS27T3B Package Information
3.4.1 Bonding Pad List
Window : (xl = -620.000, yl = -635.000),(xh = 620.000, yh = 635.000) Windows size : Width = 1240.000, length = 1270.000 ============================================================================= PAD NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PAD NAME S3 S4 CKSEL0 TEST CKSEL1 ANT * VSS VDD RESET X1 X2 ID1 ID0 TXOUT S1 S2 PIN NAME 1 2 3 4 5 6 *7 8 9 10 11 12 13 14 15 16 X -535.000 -535.000 -535.000 66.325 173.325 282.725 535.000 535.000 535.000 245.005 138.005 31.005 -75.995 -288.420 -535.000 -535.000 Y -69.260 -360.520 -484.865 -550.000 -550.000 -550.000 -218.395 20.945 284.600 550.000 550.000 550.000 550.000 550.000 329.000 37.740 ----------------------------------------------------------------------------------------------------------------------------------------
=============================================================================
(*: Bonding Sequence start from VSS(Pin7))
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W55RFS27T3B
3.4.2 Bonding Pad Diagram
3
2
1
1
1 1
4 5 6
W55RFS27T3
1 1
LOGO
1 9 1
*7
8
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Publication Release Date:June 8, 2005 Revision A1
W55RFS27T3B
4. DESIGN INFORMATION
4.1 W55RFS27T3B Reference Design
4.1.1 TXOUT waveform
TEST ANT
TEST=0
1
2
... ...
16
TXOUT
1
2
16
Power down Any key pressed Key STOP
TEST ANT 1 2
TEST=1
...
16
TXOUT
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W55RFS27T3B
4.1.2 Application Circuit for 6 Control Functions
Set TEST = 0. 1. Use this circuit when F1 and F2 are required.(i.e., when more than 4 functions are required). 2. When a 9-V battery is used, an external power switch is required to save power 3. LEDs require extra components
VSPLY
SW1 TXOUT Forward SW3 TXOUT Left turn
S1
R3
1K
SW2 Backward
300 R5
LED LED1
S2
R4
1K
SW4 Right turn 100u C0 S1 1N4148 D1 1N4148 D2
Input Protection S2
LED control circuit
SW5 SW6 F1 F2 CKSEL0 U1 1 2 3 4 CKSEL1 5 6 VDD JP3 1 2 Power In BT1 BAT VDD VDD 7 8 S3 S4 CKSEL0 TEST CKSEL1 ANT VSS VDD S2 S1 TXOUT ID0 ID1 X2 X1 RESET W55RFS27T3B 16 15 14 13 12 11 10 9 R1 20K 49.86MHz Overtone Crystal S2 S1 TXOUT ID0 ID1 ID0 VDD JP6 1 2 3 ID0 ID1 C8 7p JP7 1 2 3 ID1 VDD
L1 39nH ANTENNA L2 1uH Dependent on Antenna C13 47n
C7 240p BT1 9V S1 PWR R5 120 VDD L7 1uH C9 D3 4.3V C18 470u + C19 47n 7p C33 47n
* 27MHz,(L1,C7)= (56nH, 470pF), (L7,C33)=none * 35MHz,(L1,C7)= (47nH, 360pF), (L7,C33)=(3.3uH,47n) * 40MHz,(L1,C7)= (47nH, 300pF), (L7,C33)=(2.2uH,47n) * 49MHz,(L1,C7)= (39nH, 240pF), (L7,C33)=(1uH,47n)
CKSEL1 CKSEL0
VDD
Title Size A Date:
W55RFS27T3B Application Circuit (49MHz) Document Number {Doc} Monday, May 03, 2004 Sheet 1 of 1 Rev {RevCode}
For 49MHZ
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Publication Release Date:June 8, 2005 Revision A1
W55RFS27T3B
W55RFS27T3B Application Schematic BOM(6-function):
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Qty 1 2 3 1 1 2 1 1 1 1 1 2 1 2 Reference C7 C8,C9 C13,C19,C33 C18 L1 L2,L7 R1 U1 Y1 LED1 C0 D2,D1 R5 R4,R3 Part 240p 7p 47n 10u 39nH 1uH 20K W55RFS27T3B 49.86MHz LED 100u 1N4148 300 1K (Optional) (Optional) (Optional) (Optional) (Optional) ________________________________________________________________________________
4.1.3
Application Circuit for 4 Control Functions
Set TEST = 1. 1. Only 4 functions are provided. 2. The external power switch is not required when using a 9-V battery. 3. LEDs can be directly driven by TXOUT.
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W55RFS27T3B
D3 1N4148 SW3 SW4 Left-turn Right-Turn CKSEL0 D4 1N4148 1 2 3 4 CKSEL1 5 6 VDD VDD 7 8
U1 S3 S4 CKSEL0 TEST CKSEL1 ANT VSS VDD S2 S1 TXOUT ID0 ID1 X2 X1 RESET W55RFS27T3B 16 15 14 13 12 11 10 9
D2 1N4148 D1 1N4148 SW2 SW1 TXOUT ID0 ID1 C8 7p Backward Forward
TXOUT 300 R5 LED LED1
R1 20K
49.86MHz Overtone Crystal
L1 39nH ANTENNA L2 1uH Dependent on Antenna C13 47n
C7 240p JP6 1 2 3 ID0 VDD ID0 ID1 JP7 1 2 3 VDD ID1
L7 1uH C9 7p C33 47n
R5 120 VDD BT1 9V D3 4.3V C18 470u + C19 47n
* 27MHz,(L1,C7)= (56nH, 470pF), (L7,C33)=none * 35MHz,(L1,C7)= (47nH, 360pF), (L7,C33)=(3.3uH,47n) * 40MHz,(L1,C7)= (47nH, 300pF), (L7,C33)=(2.2uH,47n) * 49MHz,(L1,C7)= (39nH, 240pF), (L7,C33)=(1uH,47n)
CKSEL1 CKSEL0
VDD
Title Size A Date:
W55RFS27T3B Application Circuit (49MHz) Document Number {Doc} Tuesday, May 04, 2004 Sheet 1 of 1 Rev {RevCode}
For 49MHZ
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Publication Release Date:June 8, 2005 Revision A1
W55RFS27T3B
4.2 uC-Mode Control Signal
S2(~ENB ) Oscillator
Chip disabled
Chip Enabled Power down
3m S1(~TXD)
ANT
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W55RFS27T3B
4.3 W55RFS27T Family FCC Certification
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Publication Release Date:June 8, 2005 Revision A1
W55RFS27T3B
5. REVISION HISTORY
VERSION DATE PAGE DESCRIPTION
A0 A1
2004/7/6 2005/5/30
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Preliminary version A0 Released version A1 (Revised by Brand) and important notice
Important Notice
Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Further more, Winbond products are not intended for applications wherein failure of Winbond products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales.
Headquarters
No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5665577 http://www.winbond.com.tw/
Winbond Electronics Corporation America
2727 North First Street, San Jose, CA 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-5441798
Winbond Electronics (Shanghai) Ltd.
27F, 2299 Yan An W. Rd. Shanghai, 200336 China TEL: 86-21-62365999 FAX: 86-21-62365998
Taipei Office
9F, No.480, Rueiguang Rd., Neihu Chiu, Taipei, 114, Taiwan, R.O.C. TEL: 886-2-8177-7168 FAX: 886-2-8751-3579
Winbond Electronics Corporation Japan
7F Daini-ueno BLDG, 3-7-18 Shinyokohama Kohoku-ku, Yokohama, 222-0033 TEL: 81-45-4781881 FAX: 81-45-4781800
Winbond Electronics (H.K.) Ltd.
Unit 9-15, 22F, Millennium City, No. 378 Kwun Tong Rd., Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064
Please note that all data and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this data sheet belong to their respective owners.
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