PRELIMINARY
PCT1789W DATA SHEET
ELECTRICAL CHARACTERISTICS
!!
PCT303DW AC Characteristics
Given values are: VA = charge pump, VD = +3.3 V ± 5%; TA = 0 °C to 70 °C for K-grade, –40 °C to +85 °C for B-grade.
Table 23 PCT303DW AC Characteristics
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Freq response, transmit a,b
Freq response, transmit a,b
Freq response, transmit b
Transmit full scale level c (0dB gain)
Freq response, receive a,b
Freq response, receive a,b
Freq response, receive b
Receive full scale level c,d (0dB gain)
FRT
Low –3dB corner
33
Hz
FRT
FRT
300Hz
–0.2
–0.2
0
0
dB
dB
3400Hz
VTX
0.98
33
Vpeak
Hz
FRR
Low –3dB corner
300Hz
FRR
–0.01
–0.2
0
0
dB
FRR
3400Hz
dB
VRX
DR
0.98
84
Vpeak
dB
Dynamic range e
Total harmonic distortion f
Gain drift
VIN = 1kHz, –60dB
VIN = 1kHz, –3dB
VIN = 1kHz
THD
AT
–84
1.0
dB
0.002
dB/°C
dB
Dynamic range (call progress AOUT)
THD (call progress AOUT)
AOUT full scale level
DRAO
THDAO
VIN = 1kHz
60
VIN = 1kHz
%
0.75VA
10
Vp-p
AOUT output impedance
kW
dB
dB
Mute level (call progress AOUT)
Dynamic range (Caller ID mode)
–90
DRCID
VCID
VIN = 1kHz, –60dB
60
Caller ID full scale level (0dB gain) c
0.8
Vpeak
a. These characteristics are determined by external components. See Figure 2 on page 6.
b. Sample rate = 8 kHz
c. Parameter measured at Tip and Ring of Figure 2 on page 6.
d. Full scale receive level produces –0.9dBFS at SDO.
e. DR = 60dB + 20 log (RMS signal/RMS noise). Applies to both the transmit and receive paths. Measurement
bandwidth is 10Hz to 3400Hz. Valid sample rate ranges between 7200Hz and 11025Hz.
f. THD = 20 log (RMS distortion/RMS signal). Applies to both the transmit and receive paths. Valid sample rate ranges
between 7200Hz and 11025Hz.
PRELIMINARY
PC-TEL, Inc.
54
1789W0DOCDAT06A-0299
ETC [ ETC ]
