HCD-SLK1i/SLK2i
HCD-SLK1i/SLK2i
50
50
• IC Block Diagrams
– DISPLAY Board –
IC001, 007 TK11133CSCL-G
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
IC004 MM1661JHBE
4
1 2
3
CN
VOUT
NC
GND
REFERENCE
BIAS
CURRENT
LIMITTER
DRIVER
THERMAL
SHUTDOWN
8
VIN
7
NC
6
NC
5
CONT
IC301 CS4335-KSZR
IC406 BD2220G-TR
AOUTR
5
1
SDATA
SERIAL INPUT
INTERFACE
INTERPOLATOR
INTERPOLATOR
2
DEM/SCLK
3
LRCK
4
MCLK
DE-EMPHASIS
'6
MODULATOR
'6
MODULATOR
DAC
DAC
VOLTAGE
REFERENCE
ANALOG
LOW-PASS
FILTER
ANALOG
LOW-PASS
FILTER
AGND
6
VA
7
AOUTL
8
3
EN (/EN)
1
VIN
2
GND
REGULATOR
VOUT
5
/OC
4
• Waveforms
– DISPLAY Board –
– MAIN Board –
2
IC605
6
(XTAL2)
500 mV/DIV, 20 ns/DIV
70 ns
1.2 Vp-p
3
IC005
q;
(XTALO)
500 mV/DIV, 20 ns/DIV
37.4 ns
1 Vp-p
1
IC401
<xz/
(OSCOUT)
500 mV/DIV, 20 ns/DIV
41.6 ns
1.4 Vp-p
ts
IC100
qa
(XCout)
500 mV/DIV, 20
P
s/DIV
31.6
P
s
1.1 Vp-p
td
IC100
qd
(XOUT)
1 V/DIV, 100 ns/DIV
198 ns
3.6 Vp-p
ta
IC300
ih
(XTAL_OUT)
500 mV/DIV, 20 ns/DIV
40.6 ns
1.5 Vp-p
