Denon S-301 Service Manual page 72

LC72720NM (IC506: 1U-3694)
Vref 1 24
MPXIN 2 23
Vdda 3 22
Vssa 4 21
FLOUT 5 20
CIN 6 19
T1 7 18
T2 8 17
T3 (RDCL) 9 16
10 15
T4 (RDDA)
T5 (RSFT) 11 14
XOUT 12 13
NJM2596 (IC509: 1U-3695)
24
1
QT240 (IC306: 1U-3681)
SNS2
20
1
SNS2K
19
2
SNS1
3
18
SNS1K
4
17
QT240
OUT1
5
16
20-SSOP
OUT2
6 15
OUT3
7 14
VSS
8 13
SS/SYNC
12
9
n.c. 11
10
Vdda
SYR
REFERENCE
VOLTAGE
CE
Vssa
DI
CL
ANTIALIASING
MPXIN
DO
RDS-ID
SYNC
DO
T7 (CORREC/ARI-ID/BEO)
CL
T6 (ERROR/57K/BE1) DI
CE
Vssd
Vddd
T1
XIN T2
T3 T7
13
12
Pin
1
SNS3K
2
3
SNS3
4
SNS4K
5
6
SNS4
7
n.c.
8
9
OSC
10
VDD
11
12
/RES
13
OUT4
14
15
n.c.
16
17
18
19
20
FLOUT CIN
VREF
VREF
57kHz
BPF
(SCF)
SMOOTHING
FILTER
FILTER
RAM
CCB
(24 BLOCK DATA)
MEMORY CONTROL
TEST
Name Description
SNS2 Sense pin (to Rs2 + Cs2)
SNS2K Sense pin (to Cs2, electrode)
SNS1 Sense pin (to Rs1 + Cs1)
SNS1K Sense pin (to Cs1, electrode); speed option
OUT1 Output, key 1
OUT2 Output, key 2
OUT3 Output, key 3
VSS Ground
SYNC/SS Sync in and/or spread spectrum drive
n.c. Unbonded internally
n.c. Unbonded internally
OUT4 Output, key 4
/RES Reset pin, active low. Can usually tie to Vdd.
VDD Power: +4.0 to +5V locally regulated
OSC Oscillator bias in
VSS Ground or no connect
SNS4 Sense pin (to Rs4 + Cs4)
SNS4K Sense pin (to Cs4, electrode); OPT2
SNS3 Sense pin (to Rs3 + Cs3)
SNS3K Sense pin (to Cs3, electrode); OPT1
72
CLOCK
PLL
RECOVERY
(57kHz)
(1167.5Hz)
DATA
DECODER
ERROR CORRECTION
SYNC/EC CONTROLLER
(SOFT DECISION)
CLK(4.332MHz)
SYNC
DETECT-1 DETECT-2
OSC/DIVIDER
XIN XOUT
S-301
Vddd
Vssd
RDS-ID
SYNC
SYR
SYNC