Silicon Laboratories ISOMODEM Si2401, Manual

Page: 7 / 74

Si2401
Preliminary Rev. 0.9 7
Table 4. AC Characteristics
(V
D
=
3.0 to 3.6 V, T
A
=
0 to 70 °C for F-Grade,
Fs = 8 kHz
)
Parameter Symbol Test Condition Min Typ Max Unit
Sample Rate Fs — 8 — kHz
Clock Input Frequency F
XTL
default — 4.9152 — MHz
Clock Input Frequency
F
XTL
>10 k
Ω
resistor between pin 11
and GND
— 27 — MHz
Transmit Frequency Response Low –3 dBFS Corner — 0 — Hz
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 Level
1
V
FS
— 1 — V
PEAK
Receive Full Scale Level
1,2
V
FS
— 1 — V
PEAK
Dynamic Range
3
DR ILIM = 0, DCV = 11, MINI=00
DCR = 0, I
L
= 100 mA
— 80 — dB
Dynamic Range
3
DR ILIM = 0, DCV = 00, MINI=11
DCR = 0, I
L
= 20 mA
— 80 — dB
Dynamic Range
3
DR ILIM = 1, DCV = 11, MINI=00
DCR = 0, I
L
= 50 mA
— 80 — dB
Transmit Total Harmonic
Distortion
4
THD ILIM = 0, DCV = 11, MINI=00
DCR = 0, I
L
= 100 mA
— –72 — dB
Transmit Total Harmonic
Distortion
4
THD ILIM = 0, DCV = 00, MINI=11
DCR = 0, I
L
= 20 mA
— –78 — dB
Receive Total Harmonic
Distortion
4
THD ILIM = 0, DCV = 00, MINI=11
DCR = 0, I
L
= 20 mA
— –78 — dB
Receive Total Harmonic
Distortion
4
THD ILIM = 1,DCV = 11, MINI=00
DCR = 0, I
L
= 50 mA
— –78 — dB
Dynamic Range (Caller ID mode) DR
CID
VIN = 1 kHz, –13 dBFS — 50 — dB
Notes:
1. Measured at TIP and RING with 600
Ω
termination at 1 kHz, as shown in Figure 1 on page 6.
2. Receive full scale level produces –0.9 dBFS at DTX.
3. DR
=
20 x log (rms V
FS
/rms Vin) + 20 x log (rms Vin/rms noise).
4. THD
=
20 x log (rms distortion/rms signal).Vin
=
1 kHz, –3 dBFS.