U4082B Datasheet, PDF (17/30 Pages) ATMEL Corporation – Low-voltage Voice-switched IC for Hands-free Operation

7. Temperature Characteristics
Parameters
Supply current, CD = 0.8 VI_S
Supply current, CD = 2.0 VI_S
V_B output voltage, V_S = 5.0V V_O
Attenuator gain (maximum gain)
Attenuator gain (maximum attenuation)
Attenuator input resistance (at TI, RI)
Dial tone detector threshold
CT source, sink current
Microphone, hybrid amplifier offset
Transmit receive switching threshold
Sink current at RLO1, RLO2, TLO1, TLO2
Closed loop gain (HTO– to HTO+)
Typical Value at 25° C
5.0 mA
400.0 µA
2.1V
+6.0 dB
–46.0 dB
10.0 kΩ
15.0 mV
±60.0 µA
0.0 mV
1.0
4.0 µA
0.0 dB
U4082B
Typical Change –20° C to +60° C
–0.3%/° C
–0.4%/° C
+0.8%/° C
0.0008 dB/° C
0.004 dB/° C
+0.6%/° C
+20.0 mV/° C
–0.15%/° C
±4.0 mV/° C
±0.02%/° C
–10.0 nA/° C
0.001%/° C
Figure 7-1. Attenuator Gain versus VCT (Pin 14)
10
0
-10
T attenuator
-20
R attenuator
-30
-40
-50
-320
-160
0
160
320
V_CT - V_B (mV)
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4743D–CORD–03/06