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参数资料
| 型号： | CS42L51-CNZR |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 30/43页 |
| 文件大小： | 0K |
| 描述： | IC CODEC LOW-V 24BIT 32-QFP |
| 标准包装： | 6,000 |
| 类型： | 立体声音频 |
| 数据接口： | PCM 音频接口 |
| 分辨率（位）： | 24 b |
| ADC / DAC 数量： | 2 / 2 |
| 三角积分调变： | 是 |
| 动态范围，标准 ADC / DAC (db)： | 98 / 98 |
| 电压 - 电源，模拟： | 1.8V，2.5V |
| 电压 - 电源，数字： | 1.8V，2.5V |
| 工作温度： | -10°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-QFP |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 管件 |
| 配用： | 598-1005-ND - BOARD EVAL FOR CS42L51 CODEC |
| 其它名称： | Q3956082 |
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36
DS679F1
CS42L51
4.4.5
Tone Control
Shelving filters are used to implement bass and treble (boost and cut) with four selectable corner frequen-
cies. Boosting will affect peak detect and limiting when levels exceed the maximum threshold settings.
4.4.6
Limiter
When enabled, the limiter monitors the digital input signal before the DAC modulator, detects when levels
exceed the maximum threshold settings and lowers the AOUT volume at a programmable attack rate be-
low the maximum threshold. When the input signal level falls below the maximum threshold, the AOUT
volume returns to its original level set in the Volume Control register at a programmable release rate. At-
tack and release rates are affected by the DAC soft ramp/zero cross settings and sample rate, Fs. Limiter
soft ramp and zero cross dependency may be independently enabled/disabled.
Recommended settings: Best limiting performance may be realized with the fastest attack and slowest
release setting with soft ramp enabled in the control registers. The “cushion” bits allow the user to set a
threshold slightly below the maximum threshold for hysteresis control - this cushions the sound as the lim-
iter attacks and releases.
Note:
1.
When the Limiter is enabled, the AOUT Volume is automatically controlled and should not be adjusted
manually. Alternative volume control may be realized using the PCMMIXx_VOL[6:0] bits.
2.
The Limiter maintains the output signal between the CUSH and MAX thresholds. As the digital input
signal level changes, the level-controlled output may not always be the same but will always fall within
the thresholds.
Software
Controls:
Software
Controls:
FREQ[3:0]
...
BPVOL[4:0]
ONTIME[3:0]
OFFTIME[2:0]
REPEAT = '0'
BEEP = '1'
REPEAT = '1'
BEEP = '0'
REPEAT = '1'
BEEP = '1'
SINGLE-BEEP: Beep turns on at a
configurable frequency (FREQ) and
volume (BPVOL) for the duration of
ONTIME. BEEP must be cleared
and set for additional beeps.
MULTI-BEEP: Beep turns on at a configurable frequency (FREQ)
and volume (BPVOL) for the duration of ONTIME and turns off for
the duration of OFFTIME. On and off cycles are repeated until
REPEAT is cleared.
CONTINUOUS BEEP: Beep turns on at a configurable frequency (FREQ) and volume (BPVOL) and remains
on until REPEAT is cleared.
Figure 15. Beep Configuration Options
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS42L51-DNZ | 功能描述:接口—CODEC LV Stereo Codec F/ Digital Audio Apps RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| CS42L51-DNZR | 功能描述:接口—CODEC IC LV Stereo Codec F Digital Audio Apps RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| CS42L52 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:2Low-power, Stereo CODEC w/ Headphone & Speaker Amps |
| CS42L52_08 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:2Low-power, Stereo CODEC w/ Headphone & Speaker Amps |
| CS42L52-CNZ | 功能描述:接口—CODEC Low Power Stereo CODEC w/ HP+Spkr Amp RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
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