參數(shù)資料
型號： PCM3003
元件分類： Codec
英文描述： 16-/20-Bit Single-Ended Analog Input/Output STEREO AUDIO CODECs
中文描述： 16-/20-Bit單端模擬輸入/輸出立體聲編解碼器
文件頁數(shù)： 18/23頁
文件大?。?/td> 206K
代理商： PCM3003
PCM3002/3003
18
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER 0
res
res
res
res
res
A1
A0
LDL
AL7
AL6
AL5
AL4
AL3
AL2
AL1
AL0
REGISTER 1
res
res
res
res
res
A1
A0
LDR
AR7
AR6
AR5
AR4
AR3
AR2
AR1
AR0
REGISTER 2
res
res
res
res
res
A1
A0
PDAD
BYPS
PDDA
ATC
IZD
OUT
DEM1
DEM0
MUT
REGISTER 3
res
res
res
res
res
A1
A0
res
res
res
LOP
res
FMT1
FMT0
LRP
res
MAPPING OF PROGRAM REGISTERS
SOFTWARE CONTROL (PCM3002)
PCM3002’s special functions are controlled using four pro-
gram registers which are 16 bits long. There are four distinct
registers, with bits 9 and 10 determining which register is in
use. Table III describes the functions of the four registers.
REGISTER
NAME
BIT
NAME
DESCRIPTION
Register 0
A (1:0)
res
LDL
AL (7:0)
Register Address “00”
Reserved, should be set to “0”
DAC Attenuation Data Load Control for Lch
Attenuation Data for Lch
Register 1
A (1:0)
res
LDR
AR (7:0)
Register Address “01”
Reserved, should be set to “0”
DAC Attenuation Data Load Control for Rch
DAC Attenuation for Rch
Register 2
A (1:0)
res
PDAD
PDDA
BYPS
ATC
IZD
OUT
DEM (1:0)
MUT
Register Address “10”
Reserved, should be set to “0”
ADC Power-Down Control
DAC Power-Down Control
ADC High-Pass Filter Operation Control
DAC Attenuation Data Mode Control
DAC Infinite Zero Detection Circuit Control
DAC Output Enable Control
DAC De-emphasis Control
Lch and Rch Soft Mute Control
Register 3
A (1:0)
res
LOP
FMT (1:0)
LRP
Register Address “11”
Reserved, should be set to “0”
ADC/DAC Analog Loop-Back Control
ADC/DAC Audio Data Format Selection
ADC/DAC Polarity of LR-clock Selection
TABLE III. Functions of the Registers.
PROGRAM REGISTER 0
A (1:0):
Bit 10, 9
Register Address
These bits define the address for REGISTER 0:
A1
A0
0
0
Register 0
res:
Bit 11 : 15
These bits are reserved and should be set to “0”.
Bit 8
DAC Attenuation Data Load Control for
Left Channel
Reserved
LDL:
This bit is used to simultaneously set analog
outputs of the left and right channels. The output
level is controlled by AL (7:0) attenuation data
when this bit is set to “1”. When set to “0”, the
new attenuation data will be ignored, and the
output level will remain at the previous attenua-
tion level. The LDR bit in REGISTER 1 has the
equivalent function as LDL. When either LDL or
LDR is set to “1”, the output level of the left and
right channels are simultaneously controlled.
AL (7:0): Bit 7:0
DAC Attenuation Data for Left Channel
AL7 and AL0 are MSB and LSB, respectively.
The attenuation level (ATT) is given by:
ATT = 20
x
log
10
(ATT data/255) (dB)
AL (7:0)
ATTENUATION LEVEL
00h
01h
:
FEh
FFh
–
∞
dB (Mute)
–48.16dB
:
–0.07dB
0dB (default)
PROGRAM REGISTER 1
A (1:0):
Register Address
These bits define the address for REGISTER 1:
A1
A0
0
1
Register 1
res:
Bit 15:11
These bits are reserved and should be set to “0”
Bit 8
DAC Attenuation Data Load Control for
Right Channel
Reserved
LDR:
This bit is used to simultaneously set analog
outputs of the left and right channels. The output
level is controlled by AL (7:0) attenuation data
when this bit is set to “1”. When set to “0”, the
new attenuation data will be ignored, and the
output level will remain at the previous attenua-
tion level. The LDL bit in REGISTER 0 has the
equivalent function as LDR. When either LDL or
LDR is set to “1”, the output level of the left and
right channels are simultaneously controlled.
AR (7:0): Bit 7:0
DAC Attenuation Data for Left
Channel
AR7 and AR0 are MSB and LSB respectively.
See REGISTER 0 for the attenuation formula.
相關PDF資料
PDF描述
PCM3003E 16-/20-Bit Single-Ended Analog Input/Output STEREO AUDIO CODECs
PCM3002 16-/20-Bit Single-Ended Analog Input/Output SoundPlus8482，
PCM4104 High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter
PCM4104PFBR High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter
PCM4104PFBT High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter
相關代理商/技術參數(shù)
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PCM3003E/2KG4 功能描述:接口—CODEC 16/20-Bit Sngl-end Anlg I/O Ster Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
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