Marantz SR6004, Руководство по обслуживанию

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167
IC28 : PCA9507
IC30 : NJM2589
Fig 3. Pin configuration for TSSOP8
PCA9507DP
V
CC(A)
V
CC(B)
SCLA SCLB
SDAA SDAB
GND EN
002aad400
1
2
3
4
6
5
8
7
Table 2. Pin description
Symbol Pin Description
V
CC(A)
1 port A supply voltage (2.7 V to 5.5 V)
SCLA 2 serial clock port A bus with rise time accelerator for DDC line or cable,
5 V tolerant
SDAA 3 serial data port A bus with rise time accelerator for DDC line or cable,
5 V tolerant
GND 4 supply ground (0 V)
EN 5 active HIGH buffer enable input
SDAB 6 serial data port B bus with static level offset, 5 V tolerant
SCLB 7 serial clock port B bus with static level offset, 5 V tolerant
V
CC(B)
8 port B supply voltage (2.7 V to 5.5 V)
S C IN
GND 3
V IN
S C OUT
V OUT
V+3
NC
26
27
28
V+2
Y OUT
Cb OUT
S Y OUT
GND2
1
3
2
4
5
6
7
8
9
10
11
12
13
14
Y IN
Cr IN
Cb IN
PS1
V+4
15
32
22
23
24
25
18
19
21
20
30
31
29
Y SAG
S Y SAG
V SAG
LPF
Bias
Clamp
Bias
16
Cr OUT
17
V+1
75 ȍ
Driver
6dB
AMP
75
ȍ
Driver
75 ȍ
Driver
75 ȍ
Driver
6dB
AMP
6dB
AMP
6dB
AMP
13.5MHz
LPF
6.75MHz
Clamp
LPF
75 ȍ
Driver
6dB
AMP
13.5MHz
LPF
75 ȍ
Driver
6dB
AMP
13.5MHz
Cb SAG
Cr SAG
GND1
BPF
180
䌫
to 6.75MHz
LPF
6.75MHz
Bias
Clamp
NC
NC
NC
S Y IN
NC
PS2
GND 4