CDB4352 Cirrus Logic Inc, CDB4352 Datasheet - Page 5

• Manufacturer Part Number: CDB4352
• Description: BOARD EVAL FOR CS4352 DAC
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r

Specifications of CDB4352

• Number Of Dac's: 2
• Number Of Bits: 24
• Outputs And Type: 2, Single Ended
• Sampling Rate (per Second): 192k
• Data Interface: Serial
• Dac Type: Voltage
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: CS4352
• Description/function: Audio D/A
• Operating Supply Voltage: 3.3 V
• Product: Audio Modules
• For Use With/related Products: CS4352
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1518

DS684DB1
6. GROUNDING AND POWER SUPPLY DECOUPLING
As with any high-performance converter, the CS4352 requires careful attention to power supply and grounding ar-
rangements to optimize performance.
show the component placement and top and bottom layout. The decoupling capacitors are located as close to the
CS4352 as possible. Extensive use of ground plane fill in the evaluation board yields large reductions in radiated
noise.
7. HARDWARE CONTROL
The CDB4352 is controlled through settings on switch S1. This allows for configuration of the board without a PC.
A switch is provided for CS8416 MCLK speed, clock and data source for the board, and the hardware mode config-
uration of the CS4352.
8. ANALOG OUTPUT FILTERING
The analog output on the CDB4352 has been designed according to the CS4352 datasheet. This output circuit in-
cludes an AC coupling cap, the BJT mute circuit, and a single-pole R and C.
SPDIF INPUT - OPT1
AOUTA and AOUTB
SPDIF INPUT - J16
PCM INPUT - J13
CONNECTOR
VA_H
GND
VL
INPUT/OUTPUT
Output
Input
Input
Input
Input
Input
Input
Figure 32
Table 1. System Connections
+ 1.5 V to +3.3 V power for the CS4352 serial interface
+9 V to +12 V positive supply for the CS4352 high-voltage analog and
the CDB4352 regulators
Ground connection from power supply
Digital audio interface input via coaxial cable
Digital audio interface input via optical cable
Input for master, serial, left/right clocks and serial data
RCA line-level analog outputs
details the connections to the CS4352 and
SIGNAL PRESENT
Figures
37, 38, and
CDB4352
39
5