Block Diagram; Connections; Dem−Pcm/Dsd1791/1793 Block Diagram - Texas Instruments DEM-PCM1793 User Manual

Block Diagram

1.1 Block Diagram
Figure 1−1. DEM−PCM/DSD1791/1793 Block Diagram
SW001~SW004
MODE Control
S/PDIF
COAX IN
DAI
CS8414
S/PDIF
OPT IN
DGND +5 V
Digital

1.2 Connections

The DEM-PCM/DSD1791/1793 can be operated by connecting ±15-V and 5-V
power supplies and the S/PDIF interface.
- CN051 AVCC
- CN052 GND (analog)
- CN053 AVCC−
- CN054 VCC
- CN055 GND (analog)
- CN056 VCC
- CN057 GND (digital)
- CN001 RCA jack
- U001 TORX
The S/PDIF interface accepts up to f
24-bit PCM data and 64 f
interface connector. A stereo audio signal can be obtained by connecting RCA
audio cables to the onboard RCA stereo jacks, CN103 and CN104.
1-2
DEM-AS/VDAC Daughter Card
SW001
MODE Control
DAC
Logic PCM1791
Interface PCM1793
CN001 DSD1791
DSD1793
3.3 V REG
CN058
+5 V AGND
Analog
: 9 V to 15 V
: –9 V to –15 V
: 4.5 V to 5.5 V
: 4.5 V to 5.5 V
: S/PDIF coax input
: S/PDIF optical input
s
, 1-bit DSD data can be connected directly on
s
CN003
Register Control
BAL Amp
with LPF
5534
BAL Amp
with LPF
5534
–15 V AGND +15 V
Icc = 20 mA, typical
Icc = 20 mA, typical
Icc = 80 mA, typical
(CN058 shorted, default)
= 96 kHz sampling rate, f
s
Lch OUT
Rch OUT
= 192 kHz,