參數(shù)資料
型號(hào)： TWL1110TQFP
廠商： Texas Instruments, Inc.
英文描述： VOICE-BAND AUDIO PROCESSOR VBAPE
中文描述： 語(yǔ)音頻帶音頻處理器VBAPE
文件頁(yè)數(shù)： 14/37頁(yè)
文件大?。?/td> 496K
代理商： TWL1110TQFP
TWL1110
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLWS103 – NOVEMBER 2000
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and free-air temperature (unless
otherwise noted) (continued)
receive gain and dynamic range, EAR1 selected, linear or companded (
μ
-law or A-law) mode selected (see
Note 10)
PARAMETER
TEST CONDITIONS
MIN
TYP
3.20
MAX
UNIT
6-
load RXPGA = –4 dB
16-
load RXPGA = –4 dB
32-
load RXPGA = –4 dB
0 dBm0 input signal, VDD
±
10%
PCMIN to EAR1ON, EAR1OP at 3 dBm0 to –40 dBm0
Overload signal level (3 dB)
4.05
Vpp
4.54
Absolute gain error
–1
1
dB
G i
Gain error with output level relative to gain
at –10 dBm0
l ti
–0.5
0.5
PCMIN to EAR1ON, EAR1OP at –41 dBm0 to –50 dBm0
PCMIN to EAR1ON, EAR1OP at –51 dBm0 to –55 dBm0
–1
1
dB
–1.2
1.2
NOTE 10: RXPGA = –4 dB for 32
, 16
,
or 8
,
RXVOL = 0 dB, 1020-Hz input signal at PCMI, output measured differentially between EAR1ON
and EAR1OP
receive gain and dynamic range, EAR2 selected, linear or companded (
μ
-law or A-law) mode selected (see
Note 11)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Receive reference signal level (0 dB)
0 dBm0 PCM input signal
1.36
Vpp
Vpp
dB
Overload-signal level (3 dB)
1.925
Absolute gain error
0 dBm0 input signal, VDD
±
10%
PCMIN to EAR2O at 3 dBm0 to –40 dBm0
–1
1
G i
Gain error with output level relative to gain at
–10 dBm0
l ti
–0.5
0.5
PCMIN to EAR2O at –41 dBm0 to –50 dBm0
–1
1
dB
PCMIN to EAR2O at –51 dBm0 to –55 dBm0
–1.2
1.2
NOTE 11: RXPGA = –1 dB, RXVOL = 0 dB
receive filter transfer, companded mode (
μ
-law or A-law) or linear mode selected (MCLK = 2.048 MHz) (see
Note 11)
PARAMETER
TEST CONDITIONS
MIN
–0.5
TYP
MAX
0.5
UNIT
fEAR1 or fEAR2 <100 Hz
fEAR1 or fEAR2 = 200 Hz
fEAR1 or fEAR2 = 300 Hz to 3 kHz
fEAR1 or fEAR2 = 3.4 kHz
fEAR1 or fEAR2 = 4 kHz
fEAR1 or fEAR2 = 4.6 kHz
fEAR1 or fEAR2 = 8 kHz
fEAR1 or fEAR2 <100 Hz
fEAR1 or fEAR2 = 200 Hz
–0.5
0.5
G i
Gain relative to input signal gain at 1020 Hz, internal
high-pass filter disabled
l ti
t i
t i
i t
–0.5
0.5
–1.5
0
dB
–14
–35
–47
Gain relative to input signal gain at 1020 Hz, internal
Gain relative to in ut signal gain at 1020 Hz, internal
high-pass filter enabled
–15
–5
dB
NOTE 11. RXPGA = –1 dB, RXVOL = 0 dB
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