HCD-GTZ4/GTZ4i/GTZ5
HCD-GTZ4/GTZ4i/GTZ5
36
36
• Waveforms
– DMB19 Board –
– MAIN Board –
– HUB Board –
1
IC101
0
(XTALO)
1 V/DIV, 20 ns/DIV
37 ns
1.2 Vp-p
5
IC401
qa
(XC-OUT)
2 V/DIV, 20
P
s/DIV
30.8
P
s
2.5 Vp-p
6
IC401
qd
(X-OUT)
2 V/DIV, 100 ns/DIV
198 ns
3.3 Vp-p
7
IC13
es
(XTAL2)
500 mV/DIV, 20 ns/DIV
41.6 ns
1.2 Vp-p
2
IC101
<zzv
(GPIO)
2 V/DIV, 20 ns/DIV
44 ns
3.4 Vp-p
3
IC101
<zzb
(GPIO)
2 V/DIV, 200 ns/DIV
354 ns
3.6 Vp-p
22.7
P
s
3.4 Vp-p
4
IC101
<zz.
(GPIO)
2 V/DIV, 10
P
s/DIV
• IC Block Diagrams
– DMB19 Board –
IC107 TK11133CSCL-G
IC111 MM1661JHBE
IC4601 PCM1808PWR
IC4602 CS4335-KSZR
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
4
1 2
3
CN
VOUT
NC
GND
REFERENCE
BIAS
CURRENT
LIMITTER
DRIVER
THERMAL
SHUTDOWN
8
VIN
7
NC
6
NC
5
CONT
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
ANTIALIAS
LOW-PASS FILTER
ANTIALIAS
LOW-PASS FILTER
AGND
VCC
2
3
VDD
DGND
4
5
LRCK 7
REFERENCE
u
1/64
DECIMATION
FILTER
WITH
HIGH-PASS
FILTER
SERIAL
INTERFACE
&
MODE/FORMAT
CONTROL
FMT
12
VINR
14
VINL
13
MD1
11
MD0
10
DOUT
9
BCK
8
CLOCK & TIMING CONTROL
POWER
SUPPLY
SCKI 6
VREF 1
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
