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參數(shù)資料
| 型號(hào)： | TLV320AD11APZ |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | Codec |
| 英文描述： | 3.3 V INTEGRATED ADSL OVER POTS CODEC |
| 中文描述： | 3.3伏集成ADSL POTS和編解碼器 |
| 文件頁(yè)數(shù)： | 18/28頁(yè) |
| 文件大?。?/td> | 412K |
| 代理商： | TLV320AD11APZ |
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TLV320AD11A
3.3 V INTEGRATED ADSL OVER POTS CODEC
SLWS087B – JUNE 1999 – REVISED MARCH 2000
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, typical at T
A
=
25
°
C, f
CLKIN
= 35.328 MHz, analog power supply = 3.3 V, digital power supply = 3.3 V (unless
otherwise noted)
TX and EC channel (measured differentially unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Signal bandwidth
138
kHz
Conversion rate
Conversion rate
OSEN pin high
4.416
MHz
OSEN pin low
2.208
Channel gain error
PAA = 0 dB, Input = 99.1875 kHz at 06 dB
–0.1
0.1
dB
PAA step gain error
–0.2
0.2
dB
DC offset
–70
70
mV
Cross–talk
RX to TX channel (43.125 kHz at –1 dB)
–65
dB
μ
s
dB
Group delay
6
Power supply reject ratio (PSRR)
200 mVpp at 99.1875 kHz
Load = 2000
, single-ended measured
Load = 4000
, differentially measured
50
Full scale output voltage
AVDD_TX/2
±
0.75
3
V
Vp–p
AC Performance
SNR
Signal-to-noise ratio
81
dB
THD
Total harmonic distortion ratio
43.125 kHz at –1 dB (see Note 10)
86
dB
TSNR
Signal-to-noise + harmonic distortion ratio
80
dB
MT
Missing-tone test (see Note 11)
120.750 kHz (missing-tone)
76
dB
Channel Frequency Response (refer to Figure 7)
30 kHz
–0.25
0.25
Gain relative to gain at 99.1875
(25.875 kHz DHPF is bypassed)
60 kHz
–0.25
0.25
dB
138 kHz
276 kHz
–3
–55
NOTES: 10. The input signal is the digital equivalent of a sine wave (digital full scale = 0 dB). The nominal differential output with this input
condition is 3 Vpp.
11. 27 tones, 25.875 to 138 kHz, 4.3125 kHz/step, –1 dB
reference outputs (see Note 12)
PARAMETER
REF plus input voltage
TEST CONDITIONS
MIN
TYP
2.5
MAX
UNIT
REFP
REFM
REF minus input voltage
AVDD REF = 3 3 V
AVDD_REF = 3.3 V
0.5
V
VMID_REF
REF mid input voltage
1.5
VMID_ADC
NOTE 12: All the reference outputs should not be used as voltage source.
Receive channel mid-input voltage
1.5
digital outputs
PARAMETER
TEST CONDITIONS
MIN
2.4
TYP
MAX
UNIT
VOH
VOL
High-level output voltage
IOH = 0.5 mA
IOL = –0.5 mA
V
Low-level output voltage
0.6
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