參數(shù)資料
型號: CS42L51-CNZR
廠商: Cirrus Logic Inc
文件頁數(shù): 28/43頁
文件大?。?/td> 0K
描述: IC CODEC LOW-V 24BIT 32-QFP
標準包裝: 6,000
類型: 立體聲音頻
數(shù)據(jù)接口: PCM 音頻接口
分辨率(位): 24 b
ADC / DAC 數(shù)量: 2 / 2
三角積分調(diào)變:
動態(tài)范圍,標準 ADC / DAC (db): 98 / 98
電壓 - 電源,模擬: 1.8V,2.5V
電壓 - 電源,數(shù)字: 1.8V,2.5V
工作溫度: -10°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 32-QFP
供應(yīng)商設(shè)備封裝: 32-QFN 裸露焊盤(5x5)
包裝: 管件
配用: 598-1005-ND - BOARD EVAL FOR CS42L51 CODEC
其它名稱: Q3956082
34
DS679F1
CS42L51
4.4
Analog Outputs
AOUTA and AOUTB are the ground-centered line or headphone outputs. Various signal processing options
are available, including digital mixes with the ADC signal and an internal Beep Generator. The desired path
to the DAC must be selected using the DATA_SEL[1:0] bits.
4.4.1
De-Emphasis Filter
The CODEC includes on-chip digital de-emphasis optimized for a sample rate of 44.1 kHz. The filter re-
sponse is shown in Figure 14. The de-emphasis feature is included to accommodate audio recordings
that utilize 50/15
s pre-emphasis equalization as a means of noise reduction. De-emphasis is only avail-
able in Single-Speed Mode.
Software
Controls:
Software
Controls:
Hardware
Control:
Pin
Setting
Selection
No De-Emphasis
HI
De-Emphasis Applied
Charge
Pump
Left/Right
HP Out
Switched
Capacitor DAC
and Filter
Headphone
Amp - GND
Centered
PDN_DACA
PDN_DACB
DATA_SEL[1:0]
00
CHRG_FREQ[3:0]
01
HP_GAIN[2:0]
Beep
Generator
Bass/
Treble/
Control
Σ
VOL
Peak
Detect
Limiter
Chnl Vol.
Settings
Demph
VOL
+12dB/-102dB
0.5dB steps
OUTA_VOL[7:0]
OUTB_VOL[7:0]
+12dB/-51.5dB
0.5dB steps
PCMMIXA_VOL[6:0]
PCMMIXB_VOL[6:0]
0dB/-50dB
2.0dB steps
BPVOL[4:0]
MUTE_PCMMIXA
MUTE_PCMMIXB
DEEMPH
BASS[3:0]
TREB[3:0]
+12.0dB/-10.5dB
1.5dB steps
BASS_CF[1:0]
TREB_CF[1:0]
TC_EN
SIGNAL PROCESSING ENGINE (SPE)
DAC_SZC[1:0]
DACA_MUTE
DACB_MUTE
INV_DACA
INV_DACB
DAC_SNGVOL
AMUTE
ARATE[7:0]
RRATE[7:0]
MAX[2:0]
MIN[2:0]
LIM_SRDIS
LIM_ZCDIS
LIMIT_EN
PCMA[1:0]
PCMB[1:0]
PCM
Serial
Int
e
rf
a
c
e
OFFTIME[2:0]
ONTIME[3:0]
FREQ[3:0]
REPEAT
BEEP
Channel
Swap
Figure 13. Output Architecture
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