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| 型號： | SI2439-A-GM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 56/70頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ISOMODEM 33.6KBPS 38-QFN |
| 標(biāo)準(zhǔn)包裝： | 364 |
| 系列： | * |
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Si2494/39
6
Rev. 1.0
Table 3. AC Characteristics
(VD = 3.0 to 3.6 V, TA = 0 to 70 °C for F-grade, Fs = 8 kHz, TA = –40 to 85 °C for G-grade)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Sample Rate
Fs
—
8
—
kHz
Clock Input Frequency
FXTL
default
—
4.9152
—
MHz
Clock Input Frequency
FXTL
27 MHz Mode1
—27—
MHz
Clock Input Frequency
FXTL
32 kHz Mode1
—
32.768
—
kHz
Receive Frequency Response
Low –3 dBFS Corner, FILT = 0
—
5
—
Hz
Receive Frequency Response
Low –3 dBFS Corner, FILT = 1
—
200
—
Hz
Transmit Full Scale Level2
VFS
—1.1
—
VPEAK
Receive Full Scale Level2,3
VFS
—1.1
—
VPEAK
Dynamic Range4
DR
ILIM = 0, DCV = 11, MINI = 00
DCR = 0, IL = 100 mA
—80—
dB
Dynamic Range4
DR
ILIM = 0, DCV = 00, MINI = 11
DCR = 0, IL =20mA
—80—
dB
Dynamic Range4
DR
ILIM = 1, DCV = 11, MINI = 00
DCR = 0, IL =50mA
—80—
dB
Transmit Total Harmonic
Distortion5
THD
ILIM = 0, DCV = 11, MINI = 00
DCR = 0, IL = 100 mA
—–72
—
dB
Transmit Total Harmonic
Distortion5
THD
ILIM = 0, DCV = 00, MINI = 11
DCR = 0, IL =20mA
—–78
—
dB
Receive Total Harmonic
Distortion5
THD
ILIM = 0, DCV = 00, MINI = 11
DCR = 0, IL =20mA
—–78
—
dB
Receive Total Harmonic
Distortion5
THD
ILIM = 1,DCV = 11, MINI=00
DCR = 0, IL =50mA
—–78
—
dB
Dynamic Range (Caller ID Mode)
DRCID
VIN = 1 kHz, –13 dBm
—
50
—
dB
Notes:
1.
Refer to “AN93: ISOmodem Chipset Family Designer's Guide” for configuring clock input reset strapping.
2.
Measured at TIP and RING with 600
termination at 1 kHz, as shown in Figure 1 on page 5.
3.
Receive full scale level produces –0.9 dBFS at DTX.
4.
DR = 20 x log |Vin| + 20 x log (rms signal/rms noise). Applies to both transmit and receive paths. Vin = 1 kHz, –3 dBFS.
5.
Vin = 1 kHz, –3 dBFS. THD = 20 x log (rms distortion/rms signal).
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