Datasheet
SLAS357 − DECEMBER 2001
6
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electrical characteristics over recommended ranges of supply voltage and operating free-air temperature
(unless otherwise noted) (continued)
speaker interface
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
= 2.7 V, fully differential, 8-Ω load,
3-dBm0 output, volume control = −3 dB,
PCMI data input to −4 dB level
161 200
Earphone AMP output power (see Note 5)
V
DD
= 2.7 V, fully differential, 16-Ω load,
3-dBm0 output, volume control = −3 dB,
PCMI data input to −2 dB level
128 160
mW
V
DD
= 2.7 V, fully differential, 32-Ω load,
3-dBm0 output, volume control = −3 dB,
PCMI data input to −1 dB level
81 100
3-dBm0 input, 8-Ω load 141 178
I
O
max Maximum output current for EAROUT (rms)
3-dBm0 input, 16-Ω load
90 112
mA
I
O
max
Maximum output current for EAROUT (rms)
3-dBm0 input, 32-Ω load 50 63
mA
EARMUTE −80 dB
NOTE 5: Maximum power is with a load impedance of −20%, at 25°C.
transmit gain and dynamic range, companded mode (µ-law) or linear mode selected (see Notes 6 and 7)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Transmit reference-signal level (0dB) Differential, MIC Amp 1 configured for 23.5 dB gain 88 mV
pp
Overload-signal level (3 dBm0) Differential, MIC Amp 1 configured for 23.5 dB gain 124 mV
pp
Absolute gain error 0 dBm0 input signal, 2.7 V ≤ V
DD
≤ 3.3 V −1 1 dB
Gain error with input level relative to gain at
MICIN−, MICIN+ to PCMO at 3 dBm0 to −30 dBm0 −0.5 0.5
Gain error with input level relative to gain at
−10 dBm0 MICIN, MICIN+ to PCMO
MICIN−, MICIN+ to PCMO at −31 dBm0 to −45 dBm0 −1 1
dB
−10 dBm0 MICIN, MICIN+ to PCMO
MICIN−, MICIN+ to PCMO at −46 dBm0 to −55 dBm0 −1.2 1.2
dB
NOTES: 6. Unless otherwise noted, the analog input is 0 dB, 1020-Hz sine wave, where 0 dB is defined as the zero-reference point of the channel
under test.
7. The reference signal level, which is input to the transmit channel, is defined as a value 3 dB below the full-scale value of 124-mV
pp
.
transmit filter transfer, companded mode (µ-law) or linear mode selected
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
f
MIC
< 100 Hz −0.5 0.5
f
MIC
= 200 Hz −0.5 0.5
f
MIC
= 300 Hz to 3 kHz −0.5 0.5
Gain relative to input signal gain at 1.02 kHz
f
MIC
= 3.4 kHz −1.5 0
dB
Gain relative to input signal gain at 1.02 kHz
f
MIC
= 4 kHz −14
dB
f
MIC
= 4.6 kHz −35
f
MIC
= 8 kHz −47