HT16X2TX_技术文档

2¹⁶/2¹²RF Encoder

HT16C2T3/HT16E2T3/HT16G2T3

HT16C2T4/HT16E2T4/HT16G2T4

HT12C2T3/HT12E2T3

HT12C2T4/HT12E2T4

Revision: V.1.00 Date: �anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF 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 Woꢁd...........................................................................................................................6

Operation Flowchart ..................................................................................................... 7

Application Circuit ........................................................................................................ 7

Package Information..................................................................................................... 8

ꢃ0-pin SSOP (150mil) Oꢀtline Dimensions..........................................................................ꢄ

Reel Dimensions..................................................................................................................9

Caꢁꢁieꢁ Tape Dimensions....................................................................................................10

Rev. 1.00

i

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

Features

Operating voltage: 2V ~ 3.6V

●

Low standby current: 1µA (typ.) at V_DD=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 “switch-

in, 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 2¹⁶series 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 50Ω 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

-40°C to 85°C 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 super-

heterodyne receivers.

Rev. 1.00

1

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF 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

Data Select

& Buffer

PAOUT

÷3 Divider

A9/D9

÷18 Counter &

1 of 18 Decoder

Sync.

Circuit

315M/433MHz

ASK Tx

EN

Binary Detector

A15/D15

18 Transmission

Gate Circuit

A0/D0

A8/D8

VDD

VSS

Rev. 1.00

ꢃ

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

Pin Assignment

6-Address

6-Data

8-Address

4-Data

D0

A5

20

D1

A6

A5

20

A7

1

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

9

10

19

18

17

16

15

14

13

12

11

D2

19

18

17

16

15

14

13

12

11

D0

A4

D3

A4

D1

A3

D4

A3

D2

A2

D5

A2

D3

A1

B0

A1

B0

A0

B1

A0

B1

VDD

VSS

PAOUT

XOUT

XIN

DOUT

VDD

VSS

PAOUT

XOUT

XIN

DOUT

HT12C2Tx

HT12E2Tx

6-Address

8-Data

8-Address

6-Data

10-Address

4-Data

D0

A5

20

19

18

17

16

15

14

13

12

11

D1

A6

A5

20

19

18

17

16

15

14

13

12

11

A7

D0

D1

D2

D3

D4

D5

A6

A5

20

19

18

17

16

15

14

13

12

11

A7

1

2

3

4

5

6

7

8

9

1

2

3

4

5

6

7

8

9

1

2

3

4

5

6

7

8

9

D2

A8

A4

D3

A4

A9

A3

D4

A3

D0

A2

D5

A2

D1

A1

D6

A1

D2

A0

D7

A0

D3

VDD

VSS

PAOUT

XOUT

XIN

DOUT

VDD

VSS

PAOUT

XOUT

XIN

VDD

VSS

PAOUT

XOUT

XIN

DOUT

10

HT16C2Tx

20SSOP

HT16E2Tx

20SSOP

HT16G2Tx

20SSOP

Pin Description

Pin Name

Type

Description

VDD

—

Positive poweꢁ sꢀpplꢂ.

VSS

—

Negative poweꢁ sꢀpplꢂ.

DIP switch inpꢀt

Inteꢁnal pꢀll high pꢁovided

AX

DX

B0

I

Pꢀsh bꢀtton inpꢀt and tꢁansmission enable - active Low

Can be exteꢁnallꢂ set to V_DDoꢁ left open

Compoꢀnd pin of pin16 and pin19 foꢁ HT1ꢃxꢃTx onlꢂ

Ex. In HT1ꢃCꢃTxꢅ if B0 is pꢀlled lowꢅ that means D5 and Dꢃ aꢁe pꢀlled low togetheꢁ.

Compoꢀnd pin of pin 16 and pin 17 foꢁ HT1ꢃxꢃT onlꢂ

Encodeꢁ data oꢀtpꢀt

B1

I

DOUT

O

PAOUT

XIN

O

I

RF tꢁansmit Signal

Cꢁꢂstal pin – fꢁeqꢀencꢂ is RF caꢁꢁieꢁ fꢁeqꢀencꢂ divided bꢂ 3ꢃ

e.g: foꢁ 315MHz RF caꢁꢁieꢁ a 9.ꢄ4375MHz cꢁꢂstal shoꢀld be selected

XOUT

O

Rev. 1.00

3

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

Absolute Maximum Ratings

Logic Supply Voltage ....................................................................................................... 2V to 3.6V

Logic Input Voltage ........................................................................................V_SS-0.3V to V_DD+0.3V

Storage Temperature ..................................................................................................-55°C to 150°C

Operating Temperature ................................................................................................-40°C to 85°C

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 V_DD= 3.0V, Ta = 25°C, Freq X’talOSC = 13.560MHz, EN = VDD. Bold values indicate

–20°C to70°C unless otherwise noted. 1kbps data rate 50% duty cycle. R_L50ohm load (matched)

Test Conditions

Symbol

Parameter

Min.

Typ.

Max.

Units

V_DD

—

3

Conditions

V_IH

V_IL

“H” Inpꢀt Voltage

“L” Inpꢀt Voltage

Pꢀll-high Resistance

—

0.ꢄV_DD

—

0.ꢃV_DD

—

V

R_PH

Dx

—

150

KΩ

One bit data width foꢁ

HT1ꢃxꢃTx/HT16xꢃTx

Td

I₁

3

—

0.9

—

1.0

1.1

—

ms

@ 315MHzꢅ POUT = +10dBm

@ 433.9ꢃMHz

Data High Cꢀꢁꢁent

3V

13.5

mA

@ 315MHz

@ 433.9ꢃ MHz

I₀

Data Low cꢀꢁꢁent

3V

—

3.0

1

—

I_STBY

DIN disabled cꢀꢁꢁent

—

µA

RF and Crystal

@315MHzꢅ V_DD=3.3V

@433.9ꢃMHzꢅ V_DD=3.3V

—

Oꢀtpꢀt poweꢁ level

3V

—

10

—

dBm

dBc

Haꢁmonic oꢀtpꢀt foꢁ

315 MHz

@630MHzꢅ ꢃnd haꢁm.

@945MHzꢅ 3ꢁd haꢁm.

-43

-5ꢃ

Haꢁmonic oꢀtpꢀt foꢁ

433.9ꢃ MHz

@ꢄ67.ꢄ4MHzꢅ ꢃnd haꢁm.

@1301.76MHzꢅ 3ꢁd haꢁm.

-40

-47

dBc

Extinction ꢁatio foꢁ ASK

10Kbps

—

70

dBc

@315MHz

@433.9ꢃMHz

<700

<1000

Occꢀpied Bandwidth

kHz

315 MHz Single Side

Band Phase Noise

@ 100kHz fꢁom Caꢁꢁieꢁ

@ 1000kHz fꢁom Caꢁꢁieꢁ

-73

-77

dBc/Hz

433.9ꢃ MHz Single

Side Band Phase Noise

@ 100kHz fꢁom Caꢁꢁieꢁ

@ 1000kHz fꢁom Caꢁꢁieꢁ

-7ꢃ

-76

—

dBc/Hz

pF

XTLINꢅ XTLOUT

3V Pin capacitance

ꢃ

See application ciꢁcꢀit C3ꢅ C4

3V @315MHz

@433.9ꢃMHz

15

1ꢄ

—

Exteꢁnal Capacitance

—

pF

bits

μs

STDBY tꢁansition fꢁom LOW to

HIGH (=Pilot peꢁiod)

Oꢀtpꢀt Blanking

3V

1ꢃ

1

Delta between ASK Inpꢀt Tꢁansition

3V fꢁom Low to High to RF Oꢀtpꢀt

Tꢁansition fꢁom Low to High

ASK to RF Oꢀt

Response Time

Rev. 1.00

4

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF 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

Transmitted

Continuously

4 words

An information word consists of 4 periods as illustrated below:

1/3 bit sync. period

data code

period

address code period

pilot period (12 bits)

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:

f_OSC

"One"

"Zero"

Address/

Data Bit

Td

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

Rev. 1.00

5

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

For example:

RF carrier range: 315MHz

Td

(Crystal = 9.84375MHz)

HT16xꢃT3/HT1ꢃxꢃT3

0.975ms

RF carrier range: 433MHz

Td

(Crystal = 13.56MHz)

HT16xꢃT4/HT1ꢃxꢃT4

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:

HT16E2Tx:

HT16G2Tx:

HT12C2Tx:

HT12E2Tx:

Pilot-code

A0~A5

A0~A7

A0~A9

D0~D7

D0~D5

D0~D3

1 1

A0~A5

D0~D5

D0~D3

A0~A7

Rev. 1.00

6

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

Operation Flowchart

Power on

Standby mode

No

Transmission

enabled?

YES

4 data words

transmitted

No

Transmission

still enabled

YES

4 data words

transmitted

continuously

Application Circuit

2

U2 LDO

3

U1

HT7136-1

1

20

19

18

17

16

B1

14

13

12

11

A6

A7

D0

C8

0.1uF

SW-DIP

S7

S6

S5

S4

S3

S2

S1

S0

1

2

A5

SW-DIP

SW-TACT

S8

3

A4

D1

BT1(12V)

BATTERY

SW-DIP

S9

BT2(3V)

BATTERY

4

A3

D2

SW-DIP

S10

S11

S12

S13

5

A2

D3

SW-DIP

6

A1

B0

SW-DIP

7

A0

B1

SW-DIP

R3

8

VDD

VSS

XOUT

XIN

DOUT

X1

9

2

1

L1

150nH

R1

10

PAOUT

C1

C2

C7

100pF

Trace ANT

HT12E2T3

D1

LED

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

Rev. 1.00

7

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

Package Information

20-pin SSOP (150mil) Outline Dimensions

ꢀ

ꢁ

)

*

ꢁ

ꢀ

+

ꢂ

/

0

,

=

-

.

Dimensions in inch

Symbol

Min.

Nom.

―

Max.

0.ꢃ44

0.15ꢄ

0.01ꢃ

0.347

0.065

―

A

B

C

C’

D

E

F

0.ꢃꢃꢄ

0.150

0.00ꢄ

0.335

0.049

―

0.0ꢃ5

―

0.004

0.015

0.007

0°

0.010

0.050

0.010

ꢄ°

G

H

α

―

Dimensions in mm

Symbol

Min.

5.79

3.ꢄ1

0.ꢃ0

ꢄ.51

1.ꢃ4

―

Nom.

―

Max.

6.ꢃ0

4.01

0.30

ꢄ.ꢄ1

1.65

―

A

B

C

C’

D

E

F

―

0.64

―

0.10

0.3ꢄ

0.1ꢄ

0°

0.ꢃ5

1.ꢃ7

0.ꢃ5

ꢄ°

G

H

α

―

Rev. 1.00

ꢄ

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

Reel Dimensions

,

6

+

)

*

6

ꢀ

SSOP 20S (150mil)

Symbol

Description

Dimensions in mm

330.0±1.0

100.0±1.5

13.0 ^+0.5/-0.ꢃ

ꢃ.0±0.5

A

B

C

Reel Oꢀteꢁ Diameteꢁ

Reel Inneꢁ Diameteꢁ

Spindle Hole Diameteꢁ

Keꢂ Slit Width

D

T1

Tꢃ

Space Between Flange

Reel Thickness

16.ꢄ ^+0.3/-0.ꢃ

ꢃꢃ.ꢃ±0.ꢃ

Rev. 1.00

9

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

Carrier Tape Dimensions

P

0

P

1

t

D

E

F

W

B

0

C

D

1

P

K

0

A

0

R

e

l

H

o

l

e

I

C

p

a

c

k

a

g

e

p

i

n

1

a

n

d

t

h

e

r

e

l

h

o

l

e

s

a

r

e

l

o

c

a

t

e

d

o

n

t

h

e

s

a

m

e

s

i

d

e

.

SSOP 20S (150mil)

Symbol

Description

Dimensions in mm

16.0^+0.3/-0.1

ꢄ.0±0.1

W

P

Caꢁꢁieꢁ Tape Width

Cavitꢂ Pitch

E

F

D

D1

P0

P1

A0

B0

K0

t

Peꢁfoꢁation Position

1.75±0.10

7.5±0.1

Cavitꢂ to Peꢁfoꢁation (Width Diꢁection)

Peꢁfoꢁation Diameteꢁ

Cavitꢂ Hole Diameteꢁ

Peꢁfoꢁation Pitch

Cavitꢂ to Peꢁfoꢁation (Length Diꢁection)

Cavitꢂ Length

Cavitꢂ Width

Cavitꢂ Depth

Caꢁꢁieꢁ Tape Thickness

Coveꢁ Tape Width

1.5^+0.1/-0.0

1.50^{+0.ꢃ5/-0.00}

4.0±0.1

ꢃ.0±0.1

6.5±0.1

9.0±0.1

ꢃ.3±0.1

0.30±0.05

13.3±0.1

C

Rev. 1.00

10

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011

HT16x2Tx/HT12x2Tx

2¹⁶/2¹²RF Encoder

Holtek Semiconductor Inc. (Headquarters)

No.3ꢅ Cꢁeation Rd. IIꢅ Science Paꢁkꢅ Hsinchꢀꢅ Taiwan

Tel: ꢄꢄ6-3-563-1999

Fax: ꢄꢄ6-3-563-11ꢄ9

http://www.holtek.com.tw

Holtek Semiconductor Inc. (Taipei Sales Ofﬁce)

4F-ꢃꢅ No. 3-ꢃꢅ YꢀanQꢀ St.ꢅ Nankang Softwaꢁe Paꢁkꢅ Taipei 115ꢅ Taiwan

Tel: ꢄꢄ6-ꢃ-ꢃ655-7070

Fax: ꢄꢄ6-ꢃ-ꢃ655-7373

Fax: ꢄꢄ6-ꢃ-ꢃ655-73ꢄ3 (Inteꢁnational sales hotline)

Holtek Semiconductor Inc. (Shenzhen Sales Ofﬁce)

5Fꢅ Unit Aꢅ Pꢁodꢀctivitꢂ Bꢀildingꢅ No.5 Gaoxin M ꢃnd Roadꢅ Nanshan Distꢁictꢅ Shenzhenꢅ China 51ꢄ057

Tel: ꢄ6-755-ꢄ616-990ꢄꢅ ꢄ6-755-ꢄ616-930ꢄ

Fax: ꢄ6-755-ꢄ616-97ꢃꢃ

Holtek Semiconductor (USA), Inc. (North America Sales Ofﬁce)

467ꢃ9 Fꢁemont Blvd.ꢅ Fꢁemontꢅ CA 9453ꢄꢅ USA

Tel: 1-510-ꢃ5ꢃ-9ꢄꢄ0

Fax: 1-510-ꢃ5ꢃ-9ꢄꢄ5

http://www.holtek.com

The infoꢁmation appeaꢁing in this Data Sheet is believed to be accꢀꢁate at the time of pꢀblication. Howeveꢁꢅ

Holtek assꢀmes no ꢁesponsibilitꢂ aꢁising fꢁom the ꢀse of the specifications descꢁibed. The applications

mentioned heꢁein aꢁe ꢀsed solelꢂ foꢁ the pꢀꢁpose of illꢀstꢁation and Holtek makes no waꢁꢁantꢂ oꢁ

representation that such applications will be suitable without further modiﬁcation, nor recommends the use

of its pꢁodꢀcts foꢁ application that maꢂ pꢁesent a ꢁisk to hꢀman life dꢀe to malfꢀnction oꢁ otheꢁwise. Holtek's

pꢁodꢀcts aꢁe not aꢀthoꢁized foꢁ ꢀse as cꢁitical components in life sꢀppoꢁt devices oꢁ sꢂstems. Holtek ꢁeseꢁves

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.

Rev. 1.00

11

�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011


型号：	HT16X2TX
厂家：	HOLTEK SEMICONDUCTOR INC
描述：	Operating voltage: 2V ~ 3.6V Output power up to 10dBm 工作电压： 2V 〜 3.6V的输出功率可达10dBm的
文件：	总13页 (文件大小：1027K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HT16X2TX [HOLTEK]

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