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216/212 RF Encoder
HT16C2T3/HT16E2T3/HT16G2T3 HT16C2T4/HT16E2T4/HT16G2T4 HT12C2T3/HT12E2T3 HT12C2T4/HT12E2T4
Revision: V.1.00
Date: ana 011
HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Table of Contents
Features ......................................................................................................................... 1 Applications ................................................................................................................... 1 General Description ...................................................................................................... 1 Naming for Selection Guide ......................................................................................... 2 Block Diagram ............................................................................................................... 2 Pin Assignment ............................................................................................................. 3 Pin Description .............................................................................................................. 3 Absolute Maximum Ratings ......................................................................................... 4 Functional Description ................................................................................................. 5 Address/Data Waveform ............................................................................................... 5
Bit Time (Td).........................................................................................................................5 Code Wod ...........................................................................................................................6
Operation Flowchart ..................................................................................................... 7 Application Circuit ........................................................................................................ 7 Package Information ..................................................................................................... 8
0-pin SSOP (150mil) Otline Dimensions .......................................................................... Reel Dimensions ..................................................................................................................9 Caie Tape Dimensions ....................................................................................................10
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Features
Operating voltage: 2V ~ 3.6V Low standby current: 1A (typ.) at VDD=3V Data trigger function Provides 2 compound Data trigger pins Minimum four transmission words Integrated oscillator - no external resistor Positive polarity data codes Integrated complete UHF transmitter Frequency range 300MHz to 450MHz Support ASK/OOK modulation Output power up to 10dBm Minimal external components 20-pin SSOP
Applications
Burglar alarm systems Smoke and fire alarm systems Personal alarm system Car/Garage door controllers Home/office/car security systems Cordless telephones Other remote control systems
General Description
The HT16x2Tx/HT12x2Tx are a series of encoders which include a 300M~450MHz ASK transmitter for remote control system applications. These highly integrated devices are true "switchin, antenna-out" monolithic devices. They are capable of encoding information consisting of N address bits and 16- N data bits. Each address/data input can be set to one of two logic states. The programmed addresses/data is transmitted together with the header bits via RF upon receipt of a trigger signal. The capability to select a DATA trigger on the HT16x2Tx/HT12x2Tx further enhances the application flexibility of the 216 series of encoders. The devices offer high performance in the areas of power delivery and operating temperature. In terms of power, the devices are capable of delivering +10 dBm into a 50 load. This power level enables a small form factor transmitter such as a key fob transmitter to operate near the maximum limit of transmission regulations. In terms of temperature, the devices can operate from -40C to 85C with minor frequency drift. When compared with SAW solutions, wider operation temperatures are obtainable. The also offer exceptional ease of use. It is only necessary to provide a crystal reference frequency source, which has a frequency equal to the RF carrier frequency divided by 32, together with a few additional external components to implement a complete and versatile transmitter. The devices operate using ASK/OOK - Amplitude Shift Keying/On-Off Keyed - UHF receiver types from wide-band super-regenerative radios to narrow-band, high performance superheterodyne receivers.
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Naming for Selection Guide
HTxx_x_x_Tx
Carrier Frequency 3: 300MHz~365MHz 4: 365MHz~450MHz
Bit Time (Td) 2: 1ms
Address (Dip switch) No. C: 6 E: 8 G: 10 (not available for HT12xTx)
Total Address + Data (Trigger) No. 12: 12 / 20SSOP package 16: 14 / 20SSOP package
Block Diagram
DOUT OSC2 OSC1
CREF
Oscillator PAOUT
/3 Divider A9/D9 /18 Counter & 1 of 18 Decoder Binary Detector A15/D15 18 Transmission Gate Circuit
Data Select & Buffer Sync. Circuit EN
315M/433MHz ASK Tx
A0/D0
A8/D8
VDD
VSS
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Pin Assignment
D2 D2 D1 D1 D0 D0 A3 A3 A2 A2 A1 4-Address 8-Data 4-Address 8-Data 20 1 20 1 19 2 19 18 32 18 3 17 4 17 16 54 16 15 65 15 14 76 14 13 87 13 8 12 9 12 9 11 10 11 10 HT12A2Tx HT12A2Tx D3 D3 D4 D4 D5 D5 D6 D6 D7 D7 B0 D0 D0 A5 A5 A4 A4 A3 A3 A2 A2 A1 6-Address 6-Data 6-Address 6-Data 20 1 20 1 19 2 19 18 32 18 3 17 4 17 16 54 16 15 65 15 14 76 14 13 87 13 8 12 9 12 9 11 10 11 10 HT12C2Tx HT12C2Tx D1 D1 D2 D2 D3 D3 D4 D4 D5 D5 B0 A6 A6 A5 A5 A4 A4 A3 A3 A2 A2 A1 8-Address 4-Data 8-Address 4-Data 20 1 20 1 19 2 19 18 32 18 3 17 4 17 16 54 16 15 65 15 14 76 14 13 87 13 8 12 9 12 9 11 10 11 10 HT12E2Tx HT12E2Tx A7 A7 D0
D0 D1 D1 D2 D2 D3 D3 B0
VSS PAOUT PAOUT
A1 A0 A0 VDD VDD VSS
B0 B1 B1 XOUT
XOUT XIN XIN DOUT
DOUT
VSS PAOUT PAOUT
A1 A0 A0 VDD VDD VSS
B0 B1 B1 XOUT
XOUT XIN XIN DOUT
DOUT
VSS PAOUT PAOUT
A1 A0 A0 VDD VDD VSS
B0 B1 B1 XOUT
XOUT XIN XIN DOUT
DOUT
D2 D2 D1 D1 D0 D0 A3 A3 A2 A2 A1
VSS PAOUT PAOUT
A1 A0 A0 VDD VDD VSS
4-Address 10-Data 4-Address 10-Data 20 1 20 1 19 2 19 18 32 18 3 17 4 17 16 54 16 5 15 6 15 14 76 14 13 87 13 12 98 12 9 11 10 11 10 HT16A2Tx HT16A2Tx 20SSOP 20SSOP
D3 D3 D4 D4 D5 D5 D6 D6 D7 D7 D8
D0 D0 A5 A5 A4 A4 A3 A3 A2 A2 A1
D8 D9 D9 XOUT
XOUT XIN XIN DOUT
DOUT
VSS PAOUT PAOUT
A1 A0 A0 VDD VDD VSS
6-Address 8-Data 6-Address 8-Data 20 1 20 1 19 2 19 18 32 18 3 17 4 17 16 54 16 5 15 6 15 14 76 14 13 87 13 12 98 12 9 11 10 11 10 HT16C2Tx HT16C2Tx 20SSOP 20SSOP
D1 D1 D2 D2 D3 D3 D4 D4 D5 D5 D6
A6 A6 A5 A5 A4 A4 A3 A3 A2 A2 A1
D6 D7 D7 XOUT
XOUT XIN XIN DOUT
DOUT
VSS PAOUT PAOUT
A1 A0 A0 VDD VDD VSS
8-Address 6-Data 8-Address 6-Data 20 1 20 1 19 2 19 18 32 18 3 17 4 17 16 54 16 5 15 6 15 14 76 14 13 87 13 12 98 12 9 11 10 11 10 HT16E2Tx HT16E2Tx 20SSOP 20SSOP
A7 A7 D0
D0 D1 D1 D2 D2 D3 D3 D4
A6 A6 A5 A5 A4 A4 A3 A3 A2 A2 A1
D4 D5 D5 XOUT
XOUT XIN XIN DOUT
VSS PAOUT DOUT PAOUT
A1 A0 A0 VDD VDD VSS
10-Address 4-Data 10-Address 4-Data 20 1 20 1 19 2 19 18 32 18 3 17 4 17 16 54 16 5 15 6 15 14 76 14 13 87 13 12 98 12 9 11 10 11 10 HT16G2Tx HT16G2Tx 20SSOP 20SSOP
A7 A7 A8 A8 A9 A9 D0
D0 D1 D1 D2
D2 D3 D3 XOUT
XOUT XIN XIN DOUT
DOUT
Pin Description
Pin Name VDD VSS AX DX B0 B1 DOUT PAOUT XIN XOUT Type -- -- I I I I O O I O Positive powe sppl. Negative powe sppl. DIP switch inpt Intenal pll high povided Psh btton inpt and tansmission enable - active Low Can be extenall set to VDD o left open Compond pin of pin16 and pin19 fo HT1xTx onl Ex. In HT1CTx if B0 is plled low that means D5 and D ae plled low togethe. Compond pin of pin 16 and pin 17 fo HT1xT onl Encode data otpt RF tansmit Signal Cstal pin - feqenc is RF caie feqenc divided b 3 e.g: fo 315MHz RF caie a 9.4375MHz cstal shold be selected Description
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Absolute Maximum Ratings
Logic Supply Voltage ....................................................................................................... 2V to 3.6V Logic Input Voltage ........................................................................................ VSS-0.3V to VDD+0.3V Storage Temperature .................................................................................................. -55C to 150C Operating Temperature ................................................................................................ -40C to 85C Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Specifications apply for VDD = 3.0V, Ta = 25C, Freq X'talOSC = 13.560MHz, EN = VDD. Bold values indicate -20C to70C unless otherwise noted. 1kbps data rate 50% duty cycle. RL 50ohm load (matched)
Symbol VIH VIL RPH Td I1 I0 ISTBY Parameter "H" Inpt Voltage "L" Inpt Voltage Pll-high Resistance One bit data width fo HT1xTx/HT16xTx Data High Cent Data Low cent DIN disabled cent Test Conditions VDD -- -- 3 3 3V 3V 3V Dx -- @ 315MHz POUT = +10dBm @ 433.9MHz @ 315MHz @ 433.9 MHz -- @315MHz VDD=3.3V @433.9MHz VDD=3.3V @630MHz nd ham. @945MHz 3d ham. @67.4MHz nd ham. @1301.76MHz 3d ham. -- @315MHz @433.9MHz @ 100kHz fom Caie @ 1000kHz fom Caie @ 100kHz fom Caie @ 1000kHz fom Caie Pin capacitance See application cicit C3 C4 @315MHz @433.9MHz STDBY tansition fom LOW to HIGH (=Pilot peiod) Delta between ASK Inpt Tansition fom Low to High to RF Otpt Tansition fom Low to High Conditions -- -- Min. 0.VDD -- -- 0.9 -- -- -- Typ. -- -- 150 1.0 13.5 3.0 1 Max. -- 0.VDD -- 1.1 -- -- -- Units V V K ms mA mA A
RF and Crystal -- -- -- -- -- -- -- -- -- -- -- Otpt powe level Hamonic otpt fo 315 MHz Hamonic otpt fo 433.9 MHz Extinction atio fo ASK 10Kbps Occpied Bandwidth 315 MHz Single Side Band Phase Noise 433.9 MHz Single Side Band Phase Noise XTLIN XTLOUT Extenal Capacitance Otpt Blanking ASK to RF Ot Response Time 3V 3V 3V 3V 3V 3V 3V 3V 3V 3V 3V -- -- -- -- -- -- -- -- -- -- -- 10 -43 -5 -40 -47 70 <700 <1000 -73 -77 -7 -76 15 1 1 1 -- -- -- -- -- -- -- -- -- -- -- dBm dBc dBc dBc kHz dBc/Hz dBc/Hz pF pF bits s
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Functional Description
The devices will execute a 4-word transmission cycle upon receipt of a transmission enable signal, which is a low signal on DX. The transmission cycle will repeat itself as long as the transmission enable, DX is held low. Once the transmission enable returns to a high level, the encoder output completes its final cycle and then stops as shown below.
A/Dx < 1 word Encoder DOUT 4 words Transmitted Continuously
4 words
An information word consists of 4 periods as illustrated below:
1/3 bit sync. period pilot period (12 bits) address code period data code period
Composition of Information
Address/Data Waveform
Each programmable address/data pin can be externally set to one of the following two logic states as shown below:
fOSC "One" "Zero" Td Address/ Data Bit
Bit Time (Td)
Since the bit time is derived from the crystal frequency, HT16xTx/HT12xTx provides a voltage and temperature invariance bit time. The formulation of the bit time related with crystal selection is shown below: HT16x2T3/HT12x2T3: Td=24/(fcx2500) HT16x2T4/HT12x2T4: Td=168/(fcx12500) Note: fc=crystal/106
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
For example: RF carrier range: 315MHz
Td (Crystal = 9.84375MHz) HT16xT3/HT1xT3 0.975ms
RF carrier range: 433MHz
Td (Crystal = 13.56MHz) HT16xT4/HT1xT4 0.99ms
Code Word
A group of code bits is called a code word. A code word consists of one Pilot-code (Synchronous bit) followed by address/ data bits. Refer to the diagram below: HT16C2Tx:
Pilot-code A0~A5 D0~D7 11
HT16E2Tx:
Pilot-code A0~A7 D0~D5 11
HT16G2Tx:
Pilot-code A0~A9 D0~D3 11
HT12C2Tx:
Pilot-code A0~A5 D0~D5
HT12E2Tx:
Pilot-code A0~A7 D0~D3
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Operation Flowchart
Power on
Standby mode
No
Transmission enabled? YES 4 data words transmitted
1
2
No
Transmission still enabled YES 4 data words transmitted continuously
3
4
Application Circuit
2 U2 LDO HT7136-1 1 BT1(12V) BT2(3V) BATTERY BATTERY S2 S1 S0 R3 3 C8 0.1uF S6 S5 S4 S3
HT12E2TX_UHF TX
U1 1 SW-DIP 2 SW-DIP 3 SW-DIP 4 SW-DIP 5 SW-DIP 6 SW-DIP 7 SW-DIP 8 VDD 9
L1 150nH
A6 A5 A4 A3 A2 A1 A0 VDD VSS PAOUT HT12E2T3
A7 D0 D1 D2 D3 B0 B1 XOUT XIN DOUT
20
SW-DIP S7 S8 S9 S10 S11 S12 S13 X1 R1
19
SW-TACT
18
SW-TACT
17
SW-TACT
16
SW-TACT
B1
SW-TACT
14
SW-TACT
13 12 2
C1 D1 LED
1
C2
10
11
Trace ANT
C7 100pF C5
C3
C4
C6
Note: 1. When using a 6~12V battery, an HT7136 LDO should be added 2. 315MHz RF uses a 9.84375MHz Crystal 433MHz RF uses a 13.56MHz Crystal
Title Size A4 Date: File: 1 2 3
433MTX(SZ01SZ1M11)
Number 4-Nov-2010 Sheet of D:\layout\HT9831_lay\HT1XET3\HT1XET3.Ddb By: Drawn 4 Revision
Rev. 1.00
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Package Information
20-pin SSOP (150mil) Outline Dimensions
)
*
+ +
/ 0
, .
=
Dimensions in inch
Symbol A B C C' D E F G H
Min. 0. 0.150 0.00 0.335 0.049 0.004 0.015 0.007 0
Nom. 0.05 Dimensions in mm
Max. 0.44 0.15 0.01 0.347 0.065 0.010 0.050 0.010
Symbol A B C C' D E F G H
Min. 5.79 3.1 0.0 .51 1.4 0.10 0.3 0.1 0
Nom. 0.64
Max. 6.0 4.01 0.30 .1 1.65 0.5 1.7 0.5
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Product Tape and Reel Specifications
Reel Dimensions Reel Dimensions
, 6
Package Information
)
*
+
6
SOP 28W (300mil) Symbol Symbol AA B B C DC T1 D T T1 T2
SSOP 20S (150mil)
Description Description Reel Ote Diamete Reel Outer Diameter Reel Inne Diamete Reel Inner Diameter Spindle Hole Diamete Spindle Hole Ke Slit Width Diameter Space Between Flange Key Slit Width Reel Thickness Space Between Flange Reel Thickness Dimensions mm Dimensions in in mm 330.01.0 330.01.0 100.01.5 100.01.5 13.0 +0.5/-0. 13.0 +0.5/-0.2 .00.5 16. +0.3/-0. 2.00.5 .0. 24.8 +0.3/-0.2 30.20.2
2
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder Package Information
Carrier Tape Tape Dimensions Carrier Dimensions
P0 D
P1
t
E F W B0 C
D1
P K0 A0
R e e l H o le IC p a c k a g e p in 1 a n d th e r e e l h o le s a r e lo c a te d o n th e s a m e s id e .
SOPSSOP 20S (150mil) 28W (300mil) Symbol Description Symbol Description W Caie Tape Width Carrier Tape Width PW Cavit Pitch E Pefoation Position P Cavity Pitch F Cavit to Pefoation (Width Diection) Perforation Position DE Pefoation Diamete
D1 F P0 D P1 A0 D1 B0 P0 K0 tP1 C A0
B0 K0 t C
Cavit Hole Diamete Cavity to Perforation (Width Direction) Pefoation Pitch Perforation Diameter Cavit to Pefoation (Length Diection) Cavit Length Diameter Cavity Hole Cavit Width Perforation Cavit Depth Pitch Caie Tape Thickness(Length Direction) Cavity to Perforation Cove Tape Width Cavity Length
Cavity Width Cavity Depth Carrier Tape Thickness Cover Tape Width
Dimensions in mm Dimensions in mm 16.0+0.3/-0.1 24.00.3 .00.1 1.750.10 12.00.1 7.50.1 1.750.10 1.5+0.1/-0.0 1.50+0.5/-0.00 11.50.1 4.00.1 1.5 +0.1/-0.0 .00.1 6.50.1 1.50 +0.25/-0.00 9.00.1 4.00.1 .30.1 0.300.05 2.00.1 13.30.1 10.850.10
18.340.10 2.970.10 0.350.01 21.30.1
Rev. 1.00
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HT16x2Tx/HT12x2Tx 216/212 RF Encoder
Holtek Semiconductor Inc. (Headquarters) No.3 Ceation Rd. II Science Pak Hsinch Taiwan Tel: 6-3-563-1999 Fax: 6-3-563-119 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F- No. 3- YanQ St. Nankang Softwae Pak Taipei 115 Taiwan Tel: 6--655-7070 Fax: 6--655-7373 Fax: 6--655-733 (Intenational sales hotline) Holtek Semiconductor Inc. (Shenzhen Sales Office) 5F Unit A Podctivit Bilding No.5 Gaoxin M nd Road Nanshan Distict Shenzhen China 51057 Tel: 6-755-616-990 6-755-616-930 Fax: 6-755-616-97 Holtek Semiconductor (USA), Inc. (North America Sales Office) 4679 Femont Blvd. Femont CA 9453 USA Tel: 1-510-5-90 Fax: 1-510-5-95 http://www.holtek.com Copight(c) 011 b HOLTEK SEMICONDUCTOR INC. The infomation appeaing in this Data Sheet is believed to be accate at the time of pblication. Howeve Holtek assmes no esponsibilit aising fom the se of the specifications descibed. The applications mentioned heein ae sed solel fo the ppose of illstation and Holtek makes no waant o representation that such applications will be suitable without further modification, nor recommends the use of its podcts fo application that ma pesent a isk to hman life de to malfnction o othewise. Holtek's podcts ae not athoized fo se as citical components in life sppot devices o sstems. Holtek eseves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw.
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