參數(shù)資料
型號(hào): TLV320AIC36IZQE
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA80
封裝: 5 X 5 MM, GREEN, PLASTIC, VFBGA-80
文件頁(yè)數(shù): 133/165頁(yè)
文件大小: 1895K
代理商: TLV320AIC36IZQE
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www.ti.com
SBAS387A – MAY 2009 – REVISED JUNE 2010
3.3
Electrical Characteristics – ADC Channel
At 25°C, AVDD_REG=AVDD_CP = 2.5 V, IOVDD = 3.3 V, DVDD = 1.8 V, Fs = 48-kHz, 16-bit audio data (unless otherwise
noted)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Full-scale input signal, differential inputs
0 dB gain
1
VRMS
Full-scale input, single ended
6 dB gain
0.5
VRMS
0 dB gain
92
Signal-to-noise ratio, mic inputs(1) (2)
dB
+38 dB gain(3)
69
0 dB gain
80
92
dB
Signal-to-noise ratio, line inputs(1) (2)
+38 dB gain(4)
66
dB
Dynamic range, all inputs(1) (2)
0 dB gain, –60 dB input at 1-kHz
92
dB
Total harmonic distortion, line, internal mic, and
0 dB gain, –1 dB input at 1-kHz
–85
–75
dB
external mic inputs
PSRR, all inputs
< 1-kHz, single-ended input
78
dB
< 1-kHz, differential input
100
10-kHz, differential input
80
< 1-kHz, single-ended input
55
PSRR, all inputs, unregulated(5)
dB
< 1-kHz, differential input
55
Channel separation(6)
0 dB gain, –2 dB input at 1-kHz
–70
dB
Gain error
0 dB gain, 1-kHz input
0.7
dB
Programmable Gain Amplifier (PGA) maximum
59.5
dB
gain
PGA gain step
0.5
dB
0 dB input mix gain
10
k
Input resistance, line inputs
–12 dB input mix gain
40
6 dB input mix gain
10
k
Input resistance, mic inputs
-6 dB input mix gain
40
Input capacitance, all inputs
10
pF
DIGITAL DECIMATION FILTER(7)
Filter gain from 0 to 0.39 Fs
0.1
dB
Filter gain at 0.4125 Fs
–0.25
dB
Filter gain at 0.45 Fs
–3
dB
Filter gain at 0.5 Fs
–17.5
dB
Filter gain from 0.55 Fs to 64 Fs
–75
dB
Filter group delay
17/Fs
sec
MICROPHONE BIAS GENERATORS
1.3
Bias voltage
Programmable settings, 1 k
load
1.5
V
1.6
1.8
2.0
Current sourcing
2
mA
Power supply rejection ratio
< 1-kHz
80
dB
(1)
Ratio of output level with 1-kHz full-scale sine wave input, to the output level with the inputs short circuited, measured A weighted over a
20-Hz to 20-kHz bandwidth using an audio analyzer.
(2)
All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may
result in higher THD+N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter
removes out-of-band noise, which, although not audible, may affect dynamic specification values.
(3)
+6 dB input mix gain, +26 dB PGA gain
(4)
0 dB input mix gain, +38 dB PGA gain
(5)
AVDD_DAC and AVSS_DAC connected directly to supply
(6)
Channel separation for any input connected to the ADC left channel and any other input connected to the ADC right channel
(7)
Default filter configuration
Copyright 2009–2010, Texas Instruments Incorporated
ELECTRICAL SPECIFICATIONS
7
Product Folder Link(s): TLV320AIC36
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