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參數(shù)資料
| 型號(hào)： | P95020ZNQGI |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132 |
| 封裝： | QFN-132 |
| 文件頁數(shù)： | 54/137頁 |
| 文件大小： | 3533K |
| 代理商： | P95020ZNQGI |
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P95020 / Preliminary Datasheet
Revision 0.7.10
23
2010 Integrated Device Technology, Inc.
012
MIC_L-
Differential Analog microphone negative input (left channel)
013
AFILT2
ADC filter cap
014
AFILT1
ADC filter cap
015
AGND_MIC
Return path for microphone supply (MICBIAS_L/R )
016
LISLP
Differential Analog Line Level positive input (left channel)
017
LISLM
Differential Analog Line Level negative input (left channel)
018
LISRP
Differential Analog Line Level positive input (right channel)
019
LISRM
Differential Analog Line Level negative input (right channel)
020
LLO_L
Single Ended Line Level Output (Left channel)
021
LLO_R
Single Ended Line Level Output (Right channel)
022
AVREF
Analog reference (virtual ground) bypass cap
023
VDD_AUDIO33
Filter Capacitor for Internal 3.3V Audio LDO
024
ADC_REF
ADC reference bypass cap
025
HP_R
Cap-less headphone output (right channel)
026
HP_L
Cap-less headphone output (left channel)
027
AGND
Analog (audio) return
028
VIRT_GND
Cap-less headphone signal return (virtual ground)
2.2 AUDIO - SECTION OVERVIEW
The Audio section can be divided into seven subsections.
Analog Input Buffer & Converter Block
DAC, ADC
Audio Mixer Block
Analog and Class D Output Blocks
Sub System Control and Interface Blocks
Note: All register settings are lost when power is removed.
2.3 AUDIO - ANALOG PERFORMANCE CHARACTERISTICS
Unless otherwise specified, typical values at TA =25C, VSYS = 5V, TA = -40°C to +85°C,
(VCC_AUDIO33 = 3.3V, VDD_AUDIO18 = 1.8V, AGND = DGND = 0V, TA = 25 ° C; 1 kHz input sine wave, Sample Frequency = 48 kHz, 0 dB = 1 VRMS
into 10 KΩ)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Full Scale Input Voltage:
All Analog Inputs except Mic (0 dB gain)
1.0
V rms
Differential Mic Inputs (+30dB gain)
30.0
mV rms
Differentail Mic Inputs (0 dB gain)
1.0
V rms
Full Scale Output Voltage:
Line Input to Line Output
1.0
V rms
HP Output
Per channel / 16 ohm load
0.707
V rms
PCM (DAC) to LINE_OUT
1.0
V rms
Headphone output power
Per channel / 16 ohm load
45
50
55
mWpk
Analog Frequency Response
± 1 dB limits. The max frequency response is 40 kHz if the
sample rate is 96 kHz or more.
10
30,000
Hz
Digital S/N
The ratio of the rms output level with 1 kHz full scale input to
the rms output level with all zeros into the digital input.
Measured “A weighted” over a 20 Hz to a 20 kHz bandwidth.
(AES17-1991 Idle Channel Noise or EIAJ CP-307 Signal-to-
noise ratio)
– At Line_Out pins.
D/A PCM (DAC) to LINE_OUT
95
dB
A/D LINE_IN to PCM
90
dB
Dynamic Range: -60dB signal level
Ratio of Full Scale signal to noise output with -60 dB signal,
measured “A weighted” over a 20 Hz to a 20 kHz bandwidth.
LINE_IN to LINE_OUT (direct)
98
dB
LINE_IN to LINE_OUT (mixer)
95
dB
LINE_IN to HP (direct)
90
dB
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