ꢀ ꢁꢂ ꢃ ꢄꢅ ꢆꢇ ꢈ ꢉꢉ ꢅꢃ
SLAS356 − DECEMBER 2001
electrical characteristics, V
= 2.7 V, T = 25°C (unless otherwise noted) (continued)
A
DD
receive idle channel noise and distortion, EAR2 selected, linear mode selected (see Note 11)
PARAMETER
TEST CONDITIONS
PCMIN = 0000000000000
MIN
TYP
−86
60
MAX
UNIT
Receive noise, (20-Hz to 20-kHz brickwall window)
−83 dBm0
PCMIN to EAR2O at 3 dBm0
PCMIN to EAR2O at 0 dBm0
PCMIN to EAR2O at −5 dBm0
PCMIN to EAR2O at −10 dBm0
PCMIN to EAR2O at −20 dBm0
PCMIN to EAR2O at −30 dBm0
PCMIN to EAR2O at −40 dBm0
PCMIN to EAR2O at −45 dBm0
CCITT G.712 (7.1), R2
45
60
58
55
53
52
50
45
50
54
65
62
60
Receive signal-to-distortion ratio with 1020-Hz sine-wave input
dB
60
58
57
52
Intermodulation distortion, 2-tone CCITT method, composite
power level, −13 dBm0
dB
CCITT G.712 (7.2), R2
NOTE 11: RXPGA = -1 dB, RXVOL = 0 dB
power supply rejection and crosstalk attenuation
PARAMETER
TEST CONDITIONS
MIC1N, MIC1P =0 V,
= 2.7 V + 100 mV
MIN
TYP
MAX
UNIT
Supply voltage rejection, transmit channel
−80
−45
dB
V
, f = 0 to 50 kHz
, f = 0 to 50 kHz
peak to peak
DD
peak to peak
PCM code = positive zero,
= 2.7 V + 100 mV
Supply voltage rejection, receive channel,
EAR1 selected (differential)
−90
−45
dB
dB
dB
V
DD
Crosstalk attenuation, transmit-to-receive
(differential)
MIC1N, MIC1P = 0 dB, f = 300 to 3400 Hz measured
differentially between EAR1ON and EAR1OP
70
70
PCMIN = 0 dBm0, f = 300 to 3400 Hz measured at
PCMO, EAR1 amplifier
Crosstalk attenuation, receive-to-transmit
DTMF generator
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DTMF high to low tone relative amplitude
(pre-emphasis)
1.5
2
2.5
dB
Tone frequency accuracy
Harmonic distortion
−1.5%
1.5%
−20
Measured from lower tone group to highest parasitic
dB
MICBIAS
PARAMETER
Load impedance
TEST CONDITIONS
MIN
TYP
MAX
UNIT
2
2.5
kΩ
14
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