Read Harman Kardon AVR 2550 (serv.man6) Service Manual online
No.
Pin Name
I/O
Function
21
DFS0
I
Double Speed Sampling Mode 0 Pin (Note)
“L”: Normal Speed, “H”: Double Speed at DFS1 bit = “0”.
“L”: Normal Speed, “H”: Double Speed at DFS1 bit = “0”.
22
CKS0
I
Input Clock Select 0 Pin (Note)
23
CKS1
I
Input Clock Select 1 Pin (Note)
24
CKS2
I
Input Clock Select 2 Pin (Note)
25
DIF0
I
Audio Data Interface Format 0 Pin (Note)
26
DIF1
I
Audio Data Interface Format 1 Pin (Note)
27
DIF2
I
Audio Data Interface Format 2 Pin (Note)
28
DZFE
I
Zero Input Detect Enable Pin (Note)
29
DZFR3
O
DAC3 Rch Zero Input Detect Pin
30
DZFL3
O
DAC3 Lch Zero Input Detect Pin
31
DZFR2
O
DAC2 Rch Zero Input Detect Pin
32
VREFH
I
Positive Voltage Reference Input Pin, AVDD
33
AVDD
-
Analog Power Supply Pin
34
AVSS
-
Analog Ground Pin, +4.75
~+5.25V
35
ROUT3-
O
DAC3 Rch Negative Analog Output Pin
36
ROUT3+
O
DAC3 Rch Positive Analog Output Pin
37
LOUT3-
O
DAC3 Lch Negative Analog Output Pin
38
LOUT3+
O
DAC3 Lch Positive Analog Output Pin
39
ROUT2-
O
DAC2 Rch Negative Analog Output Pin
40
ROUT2+
O
DAC2 Rch Positive Analog Output Pin
41
LOUT2-
O
DAC2 Lch Negative Analog Output Pin
42
LOUT2+
O
DAC2 Lch Positive Analog Output Pin
43
ROUT1-
O
DAC1 Rch Negative Analog Output Pin
44
ROUT1+
O
DAC1 Rch Positive Analog Output Pin
Note:SMUTE, DFS0, CKS0, CKS1, CKS2, DIF0, DIF1, DIF2, DZFE pins are ORed with serial control register.
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