AN6215S 查看數據表（PDF） - Panasonic Corporation
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AN6215S Datasheet PDF : 5 Pages
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ICs for Telephone
AN6215S
s Electrical Characteristics at Ta = 25°C (continued)
• Design reference data
Note) 1. The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
2. VCC = 5.0 V, f = 1 kHz unless otherwise specified.
Parameter
Symbol
Conditions
Min Typ Max Unit
Detection circuit input impedance
Detection circuit gain
Receiver amp. input impedance
Receiver amp. output wave
distortion factor
ZIDET
GDET
ZIRX
THD
Pin 5 input impedance
R in = 10 kΩ
Pin 3 input impedance
VORX = −10 dBm (80 kHz LPF)
50 Ω
27 dB
25 kΩ
0.3 %
Receiver amp. output noise voltage
Receiver amp. output impedance
Sidetone control operation voltage
NORX
ZORX
VDET
Wide band
Pin 4 output impedance
DC voltage of pin 5
when sidetone control operates
−65 dBm
1 kΩ
0.3 V
Sidetone control ∆Gain
variation rate
∆R ∆RX out/∆TX in
at TX in = −39 dBm
− 0.6 dB/dB
Base set mode VREF voltage
Hand set mode VREF voltage
VRB Pin 4 DC voltage at pin 7 = high
2
V
VRH Pin 4 DC voltage at pin 7 = low
1.15 V
s Terminal Equivalent Circuits
Pin No.
Equivalent circuit
1
Description
GND: Ground pin
Typical wave
0V
2
1.15 V
I2
2 17 µA
R1 68 kΩ
Receiver amp.
∆GAIN: Gain adjustment pin
Gain width of receiver amp. can be
changed by changing the external
resistance.
R1 to large → Gain width becomes
large.
R1 to small → Gain width becomes
small.
DC
1.15 V
3
VREF
25 kΩ
RX IN: Receiver signal input pin
Input receiver sound signal from line.
Input impedance is 25 kΩ.
4
3
Receiver amp. 4
C1
C2
RX OUT: Receiver signal output pin
Connect receiver amp. etc.
Receiver signal
To receiver amp.
Output impedance is approximately
50 Ω.
3
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