-33-
Pin No.
Pin Name
I/O
Description
37
38
39
40
41
42
43
44
45, 46
47, 48
49
50
51
52
53
54
55
56, 57
58
59, 60
61
62, 63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
IC DESCRIPTION-3/3 (ES3889)-2/3
PBCK/SER_IN
AUX13
AUX14
AUX15
AGND
VREFM
VREFP
AVDD
AOR+, AOR–
AOL–, AOL+
MIC2
MIC1
AGND
VREF
VCM
RSET
COMP
VGND
CDAC
VVDD
YDAC
VGND
VDAC
PLLCAP
VDD
AUX6
AUX5
AUX4
AUX3
XOUT
GND
VDD
XIN
GND
NC
GND
O
I
I/O
I/O
I/O
I
I
I
I
O
O
I
I
I
I
I
I
I
I
O
I
O
I
O
I
I
I/O
I/O
I/O
I/O
O
I
I
I
I
—
I
Dual-purpose pin. RBCK is the receive audio bit clock.
SER_IN is the serial input DSC mode.
0 – Parallel DSC mode.
1 – Serial DSC mode.
Serial Interrupt/CD-Mute or Control Pin.
Servo SCOR (SOS1) or Interrupt Input or Control Pin.
Interrupt Input or Control Pin.
Audio Analog Ground.
ADC Common Mode Reference (CMR) buffer output. CMR is approximately 2.25V. Bypass to
analog ground with 47µF electrolytic in parallel with 0.1µF.
DAC and ADC maximum reference. Bypass to VCMR with 10µF in parallel with 0.1µF.
Analog VCC, 5V.
Right channel output.
Left channel output.
Microphone input1. (Not connected)
Microphone input2.
Audio Analog Ground.
Internal resistor divider generates Common Mode Reference (CMR) voltage. Bypass to analog
ground with 0.1µF.
DAC and ADC minimum reference. Bypass to VCMR with 10µF in parallel with 0.1µF.
Full scale DAC current adjustment.
Compensation Pin.
Video Analog Ground.
Modulated chrominance output. (Not connected)
Video VCC, 5V.
Y Iuminance data bus for screen video port. (Not connected)
Video Analog Ground.
Composite video output.
Audio CAP.
Voltage supply, 5V.
Servo XLAT or Control Pin / VFD_DO.
Servo Data or Control Pin.
Servo CCW/Close or Control Pin. (Not connected)
Servo CW/Limit or Control Pin.
Crystal output.
Ground.
Voltage supply, 5V.
27MHz crystal input.
Ground.
No connect.
Ground.
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