OEC7177A (IC102)
No. Pin name
I/O
Function
1NCO
Unused(LOW is output).
2 STANDBY_H O
The POWER terminal outputs Hi-z at the standby.
It outputs LOW in front of 100ms that outputs HIGH.
It outputs Hi-z after 5s that outputs LOW.
3 VOLUME_PWM O
It's an adjustment terminal of the volume.
It's output by PWM.
4 POWER_LED O
It's a terminal that controls POWER LED.
At the POWER ON, LOW is output.
At the POWER OFF, HIGH is output.
5 TEST0 -
GND.
6 AFT I
The AFT voltage used for tuning is input.
7 KEY1 I
The voltage of the main body key is input.
(VOL DOWN, CH DOWN)
8NCO
Unused(LOW is output).
9 KEY2 I
The voltage of the main body key is input.
(VOL UP, CH UP)
10 DEGAUSS_H O
Output for demagnetization.
At the POWER ON, Hi-z is output for a certain period.
11 DTV_POWER_ON-H O
Output for DTV POWER control.
The POWER terminal outputs HIGH. In addition, after 500ms, it outputs HIGH.
DTV POWER OFF processing is completed. In addition, after 100ms, it outputs LOW.
12 DTV_RESET O
Output terminal for DTV RESET control.
When the communication of the TV u-com and the DTV u-com makes an error, LOW is output during
200ms. (It's Hi-z usually.)
13
NC O Unused(LOW is output).
14
IIC_BUS_SW
O
Output terminal for control of IIC_BUS SW.
Output terminal for TUNER control switch(Analog u-com or Digital u-com).
The IIC_BUS line connected with TUNER is switched.
Low : At a Digital channel
Hi-z : At a Analog channel
*At the external input, the last state is maintained .
15 V/C GND -
GND.
16 ACL -
Input terminal for ACL and ABCL.
17 Y SW OUT -
Output terminal for video switch
18 3.58XTAL -
Oscillation terminal for 3.58XTAL.
19 C-APC -
Terminal for chroma APC filter
20 MCU5.7V_REG_OUT -
Power output Terminal for MCU.
21 CVBS_IN3 - AV1(CVBS) picture signal input.
22 V/C VCC -
Power input terminal for picture and color circuit.
23 CVBS_IN2 -
Analog CH(CVBS) picture signal input.
24 MCU_TEST -
The pin is not connected.
25 Y IN(Y/Cb/Cr) -
D terminal Y signal input.
26 Cb IN -
D terminal Cb signal input.
27 Cr IN -
D terminal Cr signal input.
28 57V_REG_OUT -
Power output terminal for 5.7V Regulator in IC.
29 C(Y/C) IN -
Digital CH(Y/C) C signal input.
30 Y(Y/C) IN -
Digital CH(Y/C) Y signal input.
31 VREG_VCC -
Power input terminal for standby.
32 FSC_OUT -
Output terminal for Fsc signal.
33 MONITOR_OUT -
Output terminal for intelligent monitor.
34 NC -
The pin is not connected.
35 CVBS_IN1 -
AV2(CVBS) image signal input.
36 VRAMP_F/B -
Feedback Input terminal.
37 VRAMP_OUT -
Ramp output terminal.
38 VRAMP_CAP -
Condenser connector terminal.
IC DESCRIPTION
F-1
To Next Page
Loading...