参数资料
| 型号： | CDB44L11 |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD FOR CS44L11 |
| 标准包装： | 1 |
| 系列： | Popguard® |
| 放大器类型： | D 类 |
| 输出类型： | 耳机，2-通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 23mW x 2 @ 16 欧姆 |
| 电源电压： | 1.8 V ~ 2.4 V |
| 工作温度： | -10°C ~ 70°C |
| 板类型： | 完全填充 |
| 已用 IC / 零件： | CS44L11 |
| 已供物品： | 板 |
| 相关产品： | CS44L11-CZZ-ND - IC AMP AUDIO .023W STER 16TSSOP |
CDB44L11
Evaluation Board for the CS44L11
Features
23 mW/Channel into 16 ? at 2.4 V
Variable power supplies from 1.8 V to 2.4 V
Digital bass boost and treble boost
Programmable digital volume control
Short circuit protection
>90% amplifier efficiency
Description
The CDB44L11 is an excellent means to quickly demon-
strate the CS44L11 Cirrus Digital Power Headphone
As shown below, the CS44L11 takes PCM digital audio
input and converts it to a PWM output. This 16-pin
TSSOP IC provides volume up/down, treble boost, bass
boost and mute functions via push buttons and a micro
controller using an I2C interface. A RS232 interface is
provided for programming the micro controller.
The CS8420 is a receiver and sample rate converter. It
takes in the S/PDIF at a range of input sample rates and
generates a PCM output signal at a fixed sample rate.
The low pass filter removes high frequency components
from the output PWM signal effectively converting it from
digital to analog.
Amplifier IC. Analysis requires only a digital signal
source and an analog signal analyzer.
ORDERING INFORMATION
I
CDB44L11
Demonstration Board
MCLK
Clock
Divider
16 ?
LRCK
and
SCLK
Low Pass
Headphones
S/PDIF IN
CS8420
I 2 S
4
CS44L11
Filter
Low Pass
Filter
2
Control
I 2 C
Buttons
8
uC
5
2
LED Indicators
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2004
(All Rights Reserved)
APR ‘04
DS640DB1
1
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