PT8A977B Datasheet, PDF (5/11 Pages) Pericom Semiconductor Corporation – PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars

Data Sheet
PT8A977B/9781 5-Function Remote
Controller for 1V Micro Cars
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Pin/Pad Description
Pin/Pad Description of 977B
Pin No.
Pin/Pad Name
1
Right
2
Test
3
GND
4
Backward
5
Forward
6
Turbo
7
SC
8
SO
9
V_cc
10
PC
11
OSCO
12
OSCI
13
OFF
14
Left
Description
With Pull-up resistor, rightward function selected if this pin connected to GND.
With Pull-up resistor, this pin is used for testing mode.
Negative power supply
With Pull-up resistor, backward function selected if this pin connected to GND.
With Pull-up resistor, forward function selected if this pin connected to GND.
With Pull-up resistor, turbo function selected if this pin connected to GND.
Output pin of the encoding signal with carrier frequency
Output pin of the encoding signal without carrier frequency
Positive power supply
Power control output pin
Oscillator output pin
Oscillator input pin
With Pull-up resistor, this pin is used to shut down the external power supply.
With Pull-up resistor, leftward function selected if this pin connected to GND.
Pin/Pad Description of 9781
Pin No.
Pin/Pad Name
1
VO2
2
SI
AGND
3
GND
DGND
4
OSCI
5
OSCO
6
Left
7
FOUT
8
Backward
9
Forward
10
Right
DVDD
12
V_CC
AVDD
13
VI1
14
VO1
15
VR
16
VI2
Description
Output pin for the amplifier 2
Input pin of the encoding signal
Analog ground, bonded to DGND as GND
Digital ground, bonded to AGND as GND
Oscillator input pin
Oscillator output pin
Leftward output pin
Output pulse with 50% duty cycle, fequency is about 64kHz.
Backward output pin
Forward output pin
Rightward output pin
Digital power supply, bonded to AVDD as V_CC
Analog power supply, bonded to DVDD as V_CC
Input pin for the amplifier 1
Output pin for the amplifier 1
Amplifier bias voltage
Input pin for the amplifier 2
Note: additional V_CC may be needed for on-chip analog circuit.
PT0118(02/04)
5
Ver:3