HOLTEK HT6P20B2T3

HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Features
·
Complete UHF transmitter
·
Frequency range 300MHz to 450MHz
·
ASK modulation
·
Output Power to 10dBm
·
Low external part count
·
Low voltage operation (down to 2.0V)
·
224 maximum address and data codes
·
Data active: D0~D4
Applications
·
Burglar alarm system
·
Smoke and fire alarm system
·
Garage door controllers
·
Car door controllers
·
Security systems
·
Cordless telephones
·
Other remote control systems
General Description
The HT6P20x2T3 is a CMOS LSI encoder designed for remote control system applications. It
encodes 24 bits of information and then serially transmits it via the PAOUT pin upon receipt of
transmission enable (DATA pins: D0~D4) signals. In addition, the device offers various packaging for
flexible combination of address/data so as to meet the needs of various applications. Its address/data is
transmitted together with the anti-code bits using an RF transmission medium upon receipt of a trigger
signal.
The device is a high performance, easy to use, single chip ASK Transmitter IC for remote wireless
applications in the 300 to 450MHz frequency band. This transmitter IC is a true ²data-in, antenna-out²
monolithic device and offers high performance in terms of power delivery and operating temperature.
Regarding power, the device is capable of delivering up to 10 dBm into a 50W load, which enables a
small form factor transmitter to operate near the maximum limit of transmission regulations. As for
temperature, the device can operate from -40°C to 85°C whose range is wider than SAW operation
range. Being easy to use, the device only needs a reference frequency (RF carrier frequency divided by
32 times) generated from a crystal with a few additional external parts to create a complete versatile
transmitter. The device operates with 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
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Selection Table
Part No.
VDD
Addr. No.
Data No.
Trig.
Frequency Band
RF Type
Package
HT6P20B2T3
2.0V~3.6V
22
2
Data
300MHz~450MHz
ASK TX
16NSOP
HT6P20D2T3
2.0V~3.6V
20
4
Data
300MHz~450MHz
ASK TX
16NSOP
HT6P20F2T3
2.0V~3.6V
19
5
Data
300MHz~450MHz
ASK TX
16NSOP
Block Diagram
3 2 x fO
X IN
X O U T
S C
X 't a l
O s c illa to r
L o c a l O s c illa to r
(P L L & V C O )
IR C
A d d re s s
C o u n te r
P A
P A O U T
E n a b le
C o n tro l
E N
V D D
P r o g r a m m in g
C ir c u it
M ix e r & D r iv e r
C o n tr o l U n it
D a ta L a tc h
H T 6 P 2 0 F 2 T 3
H T 6 P 2 0 D 2 T 3
H T 6 P 2 0 B 2 T 3
D 0
D 1
D 0
D 1
D 0
D 2
D 1
D 2
D 3
D 3
V S S
D 4
D O U T
Note: Address/Data setups are available in various combinations, for details refer to the functional
description.
Pin Assignment
N C
1
1 6
D 1
D 2
1
1 6
D 1
D 2
1
1 6
D 1
N C
2
1 5
D 0
D 3
2
1 5
D 0
D 3
2
1 5
D 0
V S S
3
1 4
V D D
V S S
3
1 4
V D D
V S S
3
1 4
V D D
N C
4
1 3
D O U T
N C
4
1 3
D O U T
D 4
4
1 3
D O U T
V S S
5
1 2
X O U T
V S S
5
1 2
X O U T
V S S
5
1 2
X O U T
E N
6
1 1
X IN
E N
6
1 1
X IN
E N
6
1 1
X IN
A V D D
7
1 0
A V S S
A V D D
7
1 0
A V S S
A V D D
7
1 0
A V S S
A V S S
8
9
P A O U T
A V S S
8
9
P A O U T
A V S S
8
9
H T 6 P 2 0 B 2 T 3
1 6 N S O P -A
Rev. 1.00
H T 6 P 2 0 D 2 T 3
1 6 N S O P -B
2
P A O U T
H T 6 P 2 0 F 2 T 3
1 6 N S O P -C
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Pin Description
I/O
Internal
Connection
¾
¾
D0~D1
I
CMOS in Pull-high
Data input and transmission enable - active low. Can be externally set
to VSS or left open.
D2~D3
I
CMOS in Pull-high
Data input and transmission enable - active low. Can be externally set
to VSS or left open for the HT6P20D2T3.
D4
I
CMOS in Pull-high
Data input and transmission enable - active low. Can be externally set
to VSS or left open for the HT6P20F2T3.
EN
I
RF enable pin
RF enable - active high; When set low, the RF is enabled by the data
input.
VDD
¾
¾
Positive power supply
AVDD
¾
¾
RF positive power supply
VSS
¾
¾
Negative power supply, ground
AVSS
¾
¾
RF negative power supply, ground
PAOUT
O
Power amplify output L/C matching circuit
XIN
O
Crystal Fs input
XOUT
I
Crystal Fs output
DOUT
O
CMOS OUT
Pin Name
NC
Description
No connection for HT6P20B2T3/HT6P20D2T3
Crystal value is 9.84375MHz at 315MHz and 13.56MHz at 433.92MHz
Data serial transmission output
Approximate Internal Connection Circuits
D 0 ~ D 5 P in s
D O U T P in
V
D D
V
D D
V
S S
V
S S
Absolute Maximum Ratings
Supply Voltage ..............................................................................................VSS-0.3V to VSS+3.6V
Storage Temperature .................................................................................................-50°C to 125°C
Input Voltage .................................................................................................VSS-0.3V to VDD+0.3V
Operating Temperature................................................................................................-40°C to 85°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² 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.
Rev. 1.00
3
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Electrical Characteristics
Ta=25°C
Test Conditions
Symbol
Parameter
VDD
Conditions
Min.
Typ.
Max.
Unit
VDD
Operating Voltage
¾
¾
2
¾
3.6
V
VIH
²H² Input Voltage
¾
¾
0.8VDD
¾
VDD
V
VIL
²L² Input Voltage
¾
¾
0
¾
0.2VDD
V
tDW
Bit Time Width
3.0V
¾
¾
1.2
¾
ms
Ta=25°C, Freq. X¢tal OSC=13.560MHz, EN=VDD. Bold values indicate -20°C to +70°C unless
otherwise noted. 1kbps data rate 50% duty cycle. RL 50W load (matched).
Test Conditions
Symbol
Parameter
VDD
Conditions
Min.
Typ.
Max.
Unit
II
Data High Current
3V
@315MHz, POUT=+10dBm,
@433.92MHz
¾
12.5
¾
mA
IO
Data Low Current
3V
@315MHz, 433.92MHz
¾
3.0
¾
mA
ISTB
EN Low & DIN Low Current
3V
¾
1
¾
mA
@315MHz
¾
9
¾
dBm
@433.92MHz
¾
9
¾
dBm
@630MHz, 2nd harm
¾
-48
¾
dBc
@945MHz, 3rd harm
¾
-60
¾
dBc
@867.84MHz, 2nd harm
¾
-45
¾
dBc
@1301.76MHz, 3rd harm
¾
-55
¾
dBc
RF and Crystal
Output Power Level
Harmonics Output for 315MHz
Harmonics Output for 433.92MHz
Rev. 1.00
3.5V
3V
3V
Extinction Ratio for ASK 10Kbps
3V
¾
¾
70
¾
dBc
Data Rate
3V
¾
10
¾
¾
kbps
@315MHz
¾
kHz
3V
¾
<700
Occupied Bandwidth
@433.92MHz
¾
<1000
¾
kHz
@100kHz from Carrier
¾
-78
¾
dBc/Hz
@1000kHz from Carrier
¾
-77
¾
dBc/Hz
@100kHz from Carrier
¾
-78
¾
dBc/Hz
@1000kHz from Carrier
¾
-76
¾
dBc/Hz
315MHz Single Side Band Phase
Noise
3V
433.92MHz Single Side Band
Phase Noise
3V
XTLIN, XTLOUT
3V
Pin capacitance
¾
2
¾
pF
External Capacitance
3V
See application circuit C3, C4
@315MHz
@433.92MHz
¾
15
18
¾
pF
Output Blanking
3V
Standby transition from low to
high
¾
500
¾
ms
4
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Test Conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
Delta between ASK input
transition from Low To High to
RF output transition from low
to high
¾
1
¾
ms
@315MHz (fOSC=9.84MHz)
¾
150
¾
Hz
@433.92MHz
(fOSC=13.56MHz)
¾
207
¾
Hz
VDD
Conditions
ASK to RF Out Response Time
3V
CREF Clock Output Frequency
3V
Functional Description
Normal Operation
The devices encode and transmits address/data to a decoder upon receipt of a trigger signal. The
address codes of the device are always transmitted as long as power (VDD) is supplied. The
transmission function of the device is enabled by the D0~D1 pins (active low). The following diagram
shows the transmission timing:
D 0 ~ D 3
< 1 w o rd
> 1 w o rd
E n c o d e r
D O U T
Transmission Timing
A Complete code word of the HT6P20D2T3 consists of 3 periods as shown below.
fo s c
D O U T
1 c lo c k
0
1 /3 b it
p ilo t p e r io d
( 2 3 c lo c k s )
( A 0 ~ A 1 9 , 6 0 c lo c k s )
a d d r e s s c o d e p e r io d
( D 3 ~ D 0 , 1 2 c lo c k s )
d a ta c o d e p e r io d
1
0
1
a n ti- c o d e p e r io d
( 4 b its )
A Complete Code Word for the HT6P20D2T3
The device detects the logic state of the internal programmed address and the external data pins, and
then transmits the detected information during the code period. Each address/data bit can be set to one
of the following two logic states:
fo s c
" O n e "
"Z e ro "
A d d re s s /
D a ta b it
(tD W )
Rev. 1.00
5
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Code Word
A group of code bits is called a code word. A code word consists of one Synchronous bit followed by
address/data bits. Refer to the diagram below:
HT6P20B2T3
Synchronous Bit
A0~A21
D1~D0
0101
A0~A19
D3~D0
0101
A0~A18
D4~D0
0101
HT6P20D2T3
Synchronous Bit
HT6P20F2T3
Synchronous Bit
Timing Diagram
EN
> 300ms~
500ms
10Kbps
300ms~
500ms
300ms~
500ms
500us
DOUT
500us
315MHz, 433MHz
PLL
PAOUT
VDD vs. tDW
tDW (ms)
2.0
1.37
2.2
1.26
2.4
1.18
2.6
1.12
2.8
1.07
3.0
1.02
3.2
0.98
3.4
0.95
3.6
0.91
HT6P20x2T3 Power Input (VDD)
2.0
tDW(msec)
VDD
1.5
1.0
0.5
0.0
1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 4.0
Rev. 1.00
VDD (voltage)
6
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Flowchart for HT6P20D2T3
POWER ON
N
En=1
Y
Standby Mode
PLL enable
D0 = 0
Or D1 = 0
Or D2 = 0
Or D3 = 0
N
Y
DIN: Address/data words
& PA_Out: Modulated wave
transmitted
PLL off
N
Y
Delay 300~500ms
D0 = 0
Or D1 = 0
Or D2 = 0
Or D3 = 0
N
Y
DIN: Address/data words
& PA_Out: Modulated wave
transmitted continuously
Rev. 1.00
7
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Application Circuits
HT6P20D2T3_315(433)MHz TX
This part can be omitted if harmonic noise can be ignored.
Note: The values contained within brackets are for the 433.92MHz case. For example, for the 433.92MHz
application, the crystal Y1 is 13.56MHz
Application Circuit for 315M/433.92MHz Tx
Rev. 1.00
8
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Package Information
16-pin NSOP (150mil) Outline Dimensions
1 6
A
9
B
8
1
C
C '
G
H
D
E
=
F
MS-012
Symbol
Nom.
Max.
A
0.228
¾
0.244
B
0.150
¾
0.157
C
0.012
¾
0.020
C¢
0.386
¾
0.402
D
¾
¾
0.069
E
¾
0.050
¾
F
0.004
¾
0.010
G
0.016
¾
0.050
H
0.007
¾
0.010
a
0°
¾
8°
Symbol
A
Rev. 1.00
Dimensions in inch
Min.
Dimensions in mm
Min.
Nom.
Max.
5.79
¾
6.20
B
3.81
¾
3.99
C
0.30
¾
0.51
C¢
9.80
¾
10.21
D
¾
¾
1.75
E
¾
1.27
¾
F
0.10
¾
0.25
G
0.41
¾
1.27
H
0.18
¾
0.25
a
0°
¾
8°
9
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Reel Dimensions
D
T 2
A
C
B
T 1
SOP 16N (150mil)
Symbol
Description
Dimensions in mm
A
Reel Outer Diameter
330.0±1.0
B
Reel Inner Diameter
100.0±1.5
C
Spindle Hole Diameter
D
Key Slit Width
T1
Space Between Flange
T2
Reel Thickness
Rev. 1.00
13.0
+0.5/-0.2
2.0±0.5
16.8
+0.3/-0.2
22.2±0.2
10
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Carrier Tape Dimensions
P 0
D
P 1
t
E
F
W
C
D 1
B 0
P
K 0
A 0
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 .
SOP 16N (150mil)
Symbol
Description
Dimensions in mm
W
Carrier Tape Width
16.0±0.3
P
Cavity Pitch
8.0±0.1
E
Perforation Position
1.75±0.1
F
Cavity to Perforation (Width Direction)
7.5±0.1
D
Perforation Diameter
1.55
+0.10/-0.00
D1
Cavity Hole Diameter
1.50
+0.25/-0.00
P0
Perforation Pitch
4.0±0.1
P1
Cavity to Perforation (Length Direction)
2.0±0.1
A0
Cavity Length
6.5±0.1
B0
Cavity Width
10.3±0.1
K0
Cavity Depth
2.1±0.1
t
Carrier Tape Thickness
0.30±0.05
C
Cover Tape Width
13.3±0.1
Rev. 1.00
11
September 13, 2010
HT6P20B2T3/D2T3/F2T3
224 Encoder with ASK Transmitter
Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
Fax: 886-3-563-1189
http://www.holtek.com.tw
Holtek Semiconductor Inc. (Taipei Sales Office)
4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan
Tel: 886-2-2655-7070
Fax: 886-2-2655-7373
Fax: 886-2-2655-7383 (International sales hotline)
Holtek Semiconductor Inc. (Shenzhen Sales Office)
5F, Unit A, Productivity Building, No.5 Gaoxin M 2nd Road, Nanshan District, Shenzhen, China 518057
Tel: 86-755-8616-9908, 86-755-8616-9308
Fax: 86-755-8616-9722
Holtek Semiconductor (USA), Inc. (North America Sales Office)
46729 Fremont Blvd., Fremont, CA 94538
Tel: 1-510-252-9880
Fax: 1-510-252-9885
http://www.holtek.com
Copyright Ó 2010 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves 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
12
September 13, 2010