Filter
Top Products
SCD-XA5400ES
SCD-XA5400ES
3838
• Waveforms
– MAIN Board –
IC501 RE (XOUT)
1 V/DIV, 200 μs/DIV
200 μs
2.9 Vp-p
RB
IC152
1 V/DIV, 20 ns/DIV
20 ns
1.4 Vp-p
XB
IC802 UM (OSC1)
2 V/DIV, 200 ns/DIV
632 ns
3.9 Vp-p
CL1168 (27MHz)
100 mV/DIV, 50 ns/DIV
37 ns
3.1 Vp-p
– AUDIO Board – – DISPLAY Board –
• IC Block Diagrams
– MAIN Board –
IC503 PST3635NR
VDD 2
OUT 1
GND
3
+
–
VREF
CD5
NC
4
IC504 – 506 SI-3010KM-TLS
1VC
TSD
2VIN
3GND
4VOUT
5ADJ
+
–
REF
IC692 TC7W53FK (TE85R)
COMMON 1
INH
2
VEE
3
GND
4 CH 07
VCC
8
A5
LOGIC
LEVEL
CONVERTER
C
OUT IN
CH 1
6
C
OUT IN
IC1105, 1107 TK11133CSCL-G
IC1707 TK11150CSCL-G
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
IC1901 TC74LVX4053FT (EL)
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
C
B
A
OX
IX
X-COM
Y-COM
VCC
GND
VEE
INH
OZ
Z-COM
IZ
OY
IY
C
OUT
IN
C
OUT
IN
C
OUT
IN
C
OUT
IN
C
OUT
IN
C
OUT
IN
LOGIC LEVEL CONVERTOR
– AUDIO Board –
IC151 FS7140-01G
SCL 1
SDA
2
XIN
5
XOUT
6
ADDR0
3
ADDR1
7
VDD 8
VSS
4
I2C
INTERFACE
LOOP
FILTER
CRYSTAL
OSCILLATOR
REFERNCE
DIVIDER
(NR)
CHARGE
PUMP
REGISTERS
REF12
IPRG
9
N/C10
VSS
11
N/C
13
VDD14
CLKN16
CLKP
15
FEEDBACK
DIVIDER
(NF)
PHASE-
FREQUENCY
DETECTOR
UP
DOWN
VOLTAGE
CONTROLLED
OSCILLATOR
POST
DIVIDER
(NPX)
CMOS/PECL
OUTPUT
IC153 TK11133CSCL-G
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
IC154 TK11131CSCL-G (US, Canadian models)
IC154 NJM2870F33 (TE2) (AEP model)
IC201 NJM2870F33 (TE2)
5
VIN
4
VOUT
2
GND
3
NOISE
BYPASS
1
CONTROL
BANDGAP
REFERENCE
THERMAL
PROTECTION