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參數(shù)資料
| 型號： | TLV320AIC27CPFB |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, TQFP-48 |
| 文件頁數(shù)： | 52/54頁 |
| 文件大?。?/td> | 732K |
| 代理商： | TLV320AIC27CPFB |
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TLV320AIC27
STEREO AUDIO CODEC
SLAS253A – MARCH 2000 – REVISED SEPTEMBER 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over operating temperature range, AVDD = 5 V, DVDD = 3.3 V, GND = 0 V
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Logic Levels (DVDD = 3.3 V or 5 V)
VIL
Input low level
AVSS – 0.3
0.8
V
VIH
Input high level
2.2
AVDD + 0.3
V
VOL
Output low
0.1
× DVDD
V
VOH
Output high
0.9
× DVDD
V
Analog I/O Levels (input signals on any inputs, outputs on LINEOUT L, R, and MONOOUT)
Input level
Minimum input
impedance = 10 k
AVSS –100 mV
AVDD +100 mV
V
Output level
Into 10 k
load
AVSS +100 mV
Near rail
to rail
AVDD –100 mV
V
Reference Levels
CAP2
Reference input/output
2/5 AVDD
AVDD/2
3/5 AVDD
V
CAP2 impedance
75
k
VREF
Mixer reference
Buffered
CAP2
V
VREFOUT
MIC reference
Buffered
CAP2
V
CAP1
ADC reference
Buffered
CAP2
V
AFILT1
DAC reference
Buffered
CAP2
V
VREF current source (pins CAP1, AFILT2,
VREF and VREFOUT)
AVDD = 5 V
5
15
mA
VREF current source (pins CAP1, AFILT1,
VREF and VREFOUT)
AVDD = 3 V
3
5
mA
DAC Circuit Specifications (AVDD = 5 V) 48-kHz sampling
SNR A-weighted (see Note 1)
85
95
dB
Full-scale output voltage
VREF = 2.5 V
1
Vrms
THD
–3-dB full-scale input
74
96
dB
Frequency response
20
19 200
Hz
Transition band
19 200
28 800
Hz
Stop band
28 800
Hz
Out of band rejection
–40
dB
Spurious-tone reduction
–100
dB
PSRR
20 Hz to 20 kHz
40
dB
ADC Circuit Specifications (AVDD = 5 V) 48-kHz sampling
SNR A-weighted (see Note 1)
75
90
dB
ADC input for full-scale output
VREF = 2.5 V
1
Vrms
THD
–6-dB voltage input
80
95
dB
Frequency response
20
19 200
Hz
Transition band
19 200
28 800
Hz
Stop band
28 800
Hz
Stop-band rejection
–74
dB
PSRR
20 Hz to 20 kHz
40
dB
NOTE 1: SNR is the ratio of 0-dB signal output level to the output level with no signal, measured A-weighted over a 20 Hz to 20 kHz bandwidth.
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相關代理商/技術參數(shù) |
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