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參數(shù)資料
| 型號(hào)： | CDB4328 |
| 廠商： | Cirrus Logic, Inc. |
| 英文描述： | 18-Bit, Stereo D/A Converter for Digital Audio |
| 中文描述： | 18位，立體聲D / A的數(shù)字音頻轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 22/31頁(yè) |
| 文件大小： | 831K |
| 代理商： | CDB4328 |
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Power Supply Circuitry
Figure 1 shows the evaluation board power sup-
ply circuitry. Power is supplied to the evaluation
board by five binding posts. The +5 V analog
power supply inputs of the converter are derived
from + 15 V using the voltage regulators U5 and
U6. The +5 V digital supply for the converter
and the discrete logic on the board is provided
by the +5 V and DGND binding posts. D1, D2,
and D3 are transient suppressors which also pro-
vide protection from incorrectly connected
power supply leads. C1-C8 provide general
power supply filtering for the analog supplies.
As shown in Figure 2, C20-C24 provide local-
ized decoupling for the converter VA+ and VA-
and VA+ and not VA- and AGND. The evalu-
ation board uses both an analog and a digital
ground plane which are connected at J1. This
ground plane arrangement isolates the board’s
digital logic from the analog circuitry.
Offset Calibration & Reset Circuitry
Figure 1, shows the offset calibration circuit pro-
vided on the evaluation board. Upon power-up,
this circuit provides a pulse on the Digital to
Analog Converter’s RST pin initiating an offset
calibration cycle. Pressing and releasing S2 also
initiates an offset calibration cycle.
Serial Data Interface
Figure 1 shows that there are two options for in-
puting serial data into the CS4328. Serial data
can be provided via the SDATA BNC connector
on the evaluation board. BNC connectors for
SCLK, the serial data input clock, and L/R, the
clock that defines the channel and delineates the
data, are also provided on the evaluation board.
This information can also be provided by the on-
board CS8412. JP3 selects the source of
SDATA, SCLK, and L/R that will be provided to
the converter. JP3 selections are shown in Ta-
ble 1.
C6
C7
C5
C8
0.22 uF
0.47 uF
J1
+ C3
47 uF
C4
+
47 uF
0.22 uF
OUT
COM
U5
78L05
IN
D3
D2
0.47 uF
C2
+ C1
47 uF
0.1 uF
D1
+15V
-15V
+5V
79L05
U6
COM
IN
OUT
DGND
AGND
VA+
VA-
VD+
D1 = P6KE-6V8P from Thomson
D2 = D3 = 1N6276A 1.5KE
AGND
DGND
VD+
10k
C15
0.1uF
D13
1N148
S2
CAL
R4
4
3
U7B
74HC14
6
5
U7C
RST
CS4328
Figure 1. Power Supply and Reset Circuitry
CDB4328
22
DS62DB2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CDB4329 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:20-Bit, Stereo D/A Converter for Digital Audio |
| CDB4334 | 功能描述:音頻 IC 開(kāi)發(fā)工具 Eval Bd 8Pin 24-Bit 96kHz DAC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB4338 | 功能描述:音頻 IC 開(kāi)發(fā)工具 Eval Bd 8Pin 96kHz DAC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB4339 | 功能描述:音頻 IC 開(kāi)發(fā)工具 Eval Bd 8Pin 96kHz DAC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| CDB4340 | 功能描述:音頻 IC 開(kāi)發(fā)工具 Eval Bd 101dB 96kHz DAC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
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