PT8A995PE [PERICOM]
Consumer Circuit, CMOS, PDIP16, GREEN, MS-001D/BB, DIP-16;
| 型号： | PT8A995PE |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Consumer Circuit, CMOS, PDIP16, GREEN, MS-001D/BB, DIP-16 光电二极管 |
| 文件： | 总10页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Features
Description
• PT8A995 works as encoder and PT8A9961/9962/
9963/9964 work as decoders
The PT8A995 and PT8A996x provide a simple and eco-
nomic solution for basic Digital Proportional R/C car toys.
The chipset uses CMOS LSI Analog and Mixed Signal
technology. They provide high quality encoder/decoder
circuit.
• Supply voltage: 3.3V to 6.0V
• Internal auto-shutdown function
• Internal over-load protection to meet HD271 safety
specification (996x)
• Integrated RF circuit (995)
PT8A995 severs as an encoder. To obtain accurate tim-
ing easily, Manchester encoding is employed. Some digi-
tal modulation scheme can be used, e.g., general ASK,
OOK, FSK and QPSK. OOK is easy to implement and
low cost.
• Two analog channels, one for tachospeed and the
other for steering
• 32 steps for each of two analog channels
• Fine tuning selection for two analog channels
• Few external components needed
• Closed loop adjustment for servo motor (996x)
• Built-in voltage regulator (996x)
The PT8A996x provides a simple and cost effective so-
lution for basic Digital Proportional R/C car toys with
PT8A995 together. RF circuit in receiver side can de-
modulate RF signal. The demodulated signal will be am-
plified and filtered. After that, the base-band signal is
formed. DPLL is adopted to generate sampling clock.
An internalA/D converter is required to make servo mo-
tor work well. The inputs are SRV and OFFSET. Over-
load protection mechanism is built-in to meet Toy Safety
Requirement.
• Package: 16-pin DIP (995P), 20-pin DIP (996xP),
20-pin SOIC (996xS), see Ordering Information.
Applications
• Remote Controller
• Toys
• Remote Measurement
Ordering Information
The PT8A996x provide four solutions for toy car by dif-
ferent capability Servo.
Part Number
PT8A995PE
PT8A996xPE
PT8A996xSE
Package
Lead free 16-pin DIP
Lead free 20-pin DIP
Lead free and Green
20-pin SOIC
PT8A9961 PT8A9962 PT8A9963 PT8A9964
mini car
small car
middle car
large car
Note: x means 1-4 to show different part no.
Adding E=Pb-free or Pb-free and Green
Adding X suffix=Tape/Reel
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PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Block Diagram
Figure 1. Block Diagram of PT8A995
OSCI
OSCO
Timing
Generator
Oscillator
AD
PC
Encoder
&
Logic
Control
F1
F2
IRout/SC
F/B
L/R
Offset1
Offset2
SC
CA1
CA2
RFout
RF
Osc
Figure 2. Block Diagram of PT8A9961/9962/9963/9964
SI
SI_ANA
OSC
Filter
DPLL
OSCI
Timing
Generator
OSCO
Right
Left
Header
Serial
To
Parallel
PWM
&
Logic
Forward
Backward
F1
F2
FC
CRC
check
Power
On
VT1
VT2
Vref
S1
VCC
Current
Limiter
PID
Pull down
VCC
REF
S2
Parameter
GND
SRV
AD
Pull up
VI1
VO1
VI2
VO2
S1
1
S2
0
Part No.
Application
Mini car
PT8A9961
PT8A9962
PT8A9963
PT8A9964
1
1
Small car
Middle car
Large car
0
1
0
0
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PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Pin Configuration
PT8A996x
20-Pin DIP
20-Pin SOIC
PT8A995
16-Pin DIP
F2
F1
PC
SRV
OSCI
OSCO
VCC
SI
FC
VI1
1
2
3
4
5
6
7
8
Forward
Backward
Right
Left
20
19
18
17
16
15
14
13
12
11
1
PC
L/R
F/B
OSCI
OSCO
VCC
Offset2
Offset1
16
15
14
13
12
11
10
9
F2
F1
2
3
4
5
6
7
8
IRout
GND
RFout
CA1
CA2
SC
GND
VT2
VT1
VO2
VI2
9
10
VO1
Top View
Pin Description
Table 1. Pin Description of PT8A995
Pin No.
Pin name
F2
Description
1
2
F2 function control pin
F1 function control pin
Output code with 38KHz carries
Ground
F1
3
IRout
GND
RFout
CA1
CA2
SC
4
5
Output code with 27M or 49MHz carries
27M or 49MHz crystal oscillator input
27M or 49MHz crystal oscillator output
Output code
6
7
8
9
Offset1
Offset2
VCC
Used for offset adjustment of speed input
Used for offset adjustment of steering input
power
10
11
12
13
14
15
16
OSCO
OSCI
F/B
Crystal oscillator output
Crystal oscillator input
Input for forward & backward speed
Input for steering angle left & right
Power control output
L/R
PC
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PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Table 2. Pin Description of PT8A9961/9962/9963/9964
Pin No.
1
Pin Name
Forward
Backward
Right
Left
Description
Forward output
Backward output
Right output
Left output
2
3
4
5
GND
VT2
VT1
VO2
VI2
GND
6
F/B motor current limit protection input
L/R motor current limit protection input
The second stage amplify output
The second stage amplify input
The first stage amplify output
The first stage amplify input
Futaba connection output
Encode signal input
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VO1
VI1
FC
SI
VCC
Power
OSCO
OSCI
SRV
PC
Crystal oscillator output
Crystal oscillator input
Servo motor feedback input
Auto power off control
F1
Function1 control
F2
Function2 control
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested)
Note:
StorageTemperature ..........................................................-25oCto+85oC
Ambient Temperature with PowerApplied............................ 0oC to +70oC
Supply Voltage to Ground Potential (Inputs & Vcc Only) ....... -0.5to+7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ... -0.5to+7.0V
DC InputVoltage .................................................................. -0.5to+7.0V
Stresses greater than those listed under MAXI-
MUM RATINGS may cause permanent damage to
the device. This is a stress rating only and func-
tional operation of the device at these or any other
conditions above those indicated in the operational
DC Output Current .......................................................................... 20mA sections of this specification is not implied. Expo-
sure to absolute maximum rating conditions for ex-
tended periods may affect reliability.
Power Dissipation ........................................................................ 500mW
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PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Recommended Operation Conditions
Sym
VCC
VIH
VIL
Description
Test Conditions
Min
4.0
Typ
Max
5.5
Units
V
Supply Voltage
-
-
-
-
-
-
Input HIGH Voltage
Input LOW Voltage
Oscillator Frequency
Operation Temperature
0.7VCC
0
-
-
VCC
V
0.3VCC
500
V
FOSC
TA
400
0
455
-
kHz
OC
70
DC Electrical Characteristics
Sym
Description
Pin
Test Conditions
Min
-
Typ
-
Max
3
Units
mA
Clock = 455kHz, outputs
unloaded
ICC
Supply Current
ISTB
Standby Current
Output HIGH Current
Output HIGH Current
Output LOW Current
Output LOW Current
Input HIGH Current
Input HIGH Current
-
-
-8
-15
8
-
-
-
-
-
-
-
-
-
-
-
500
-
uA
mA
mA
mA
uA
uA
uA
uA
uA
uA
Function pins
PC
IOH
VIN = VCC-0.5V
-
Function pins
PC
-
IOL
VOUT = 0.5V
60
60
10
1
VT1, VT2
SI, OSCI
-
IIH
V
IN = VCC
-
Input HIGH Current Other input pins
-
Input LOW Current
Input LOW Current
SI, OSCI
-
-10
-1
IIL
VIN = 0V
Other input pins
-
Note: These specifications apply for VCC = 5.0V and 0OC ≤ TA ≤ 70OC, unless otherwise specified.
AC Electrical Characteristics
Sym
fOSC
ft
Description
Test Conditions
Rf = 200kΩ
-
Min
Typ
455
-
Max
500
1.5
Units
kHz
%
Oscillator Frequency
Frequency Tolerance
Response Time*
400
-
-
tR
fOSC = 455kHz
-
90
ms
Apply for VI1 & VI2,
RI
Inverter Input Resistance
50
-
-
kΩ
Rf = 2.2MΩ
RO
VT
Inverter Output Resistance
Overload Protection
Apply for VO1 & VO2
-
-
10
kΩ
-
0.3
0.4
0.5
V
Note: These specifications apply for VCC = 5.0V and 0OC ≤ TA ≤ 70OC, unless otherwise specified.
* The time from the transmitter’s control to the receiver σ response.
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PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Figure 3.Application of PT8A995 with External Modulation
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PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Figure 4. Futaba-S3003 ServoApplication Circuit of PT8A9961/9962/9963/9964
455k
G1
PT0093-4
07/06/12
12-07-0007
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PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Mechanical Information
20-pin SOIC
PT0093-4
07/06/12
12-07-0007
8
PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
20-pin DIP
PT0093-4
07/06/12
12-07-0007
9
PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
16-pin DIP
Pericom Semiconductor Corparation 1-800-435-2336 www.pericom.com
Pericom Technology Incorporation reserves the right to make changes to its products or specifications at any time, without notice, in order to
improve design or performance and to supply the best possible product. Pericom Technology does not assume any responsibility for use of any
circuitry described other than the circuitry embodied in Pericom Technology product. The company makes no representations that circuitry
described herein is free from patent infringement or other rights, of Pericom.
PT0093-4
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