EN 61
3139 785 30981
8.
Circuit- and IC description
PIN
CONFIGURATION
PMQFP44 package
CAPL_M
AHVSS
AGNDC
SC2_IN_L
SC2_IN_R
ASG
SC1_IN_L
SC1_IN_R
VREFTOP
MONO_IN
AVSS
RESETQ
I2S_DA_IN2
DVSS
DVSUP
ADR_CL
I2S_DA_IN1
I2S_DA_OUT
I2S_WS
I2S_CL
I2C_DA
I2C_CL
NC
SC1_OUT_L
SC1_OUT_R
VREF1
NC
AHVSUP
DACM_L
DACM_R
VREF2
NC
NC
ANA_IN1
+
ANA_IN
−
TESTEN
XTAL_IN
XTAL_OUT
AVSUP
TP
D_CTR_I/O1
D_CTR_I/O0
ADR_SEL
STANDBYQ
MSP 34x5G
34
35
36
37
38
39
40
41
42
43
44
22
21
20
19
18
17
16
15
14
13
12
1
2
3
4
5
6
7
8
9
10 11
33 32 31 30 29 28 27 26 25 24 23
Figure 8-9
IC7603 - 192KHz Stereo DAC with 2vrms line-out
BLOCK
DIAGRAM
PCM
Serial
Interface
Interpolation
Filter with
Volume Control
Internal Voltage
Reference
External
Mute
Control
DAC
Serial Audio Input
Left and Right
Mute Controls
2 Vrms Line Level
Right Channel
Output
2 Vrms Line Level
Left Channel Output
Reset
1.8 V to 3.3V
DAC
Register/Hardware
Configuration
L
evel
T
ran
sl
at
o
r
Hardware or I
2
C/SPI
Control Data
Multibit
ΔΣ
Modulator
3.3 V
9 V to 12 V
Interpolation
Filter with
Volume Control
Amp
+
Filter
Amp
+
Filter
Auto Speed Mode
Detect
Multibit
ΔΣ
Modulator
Figure 8-10