BL34018
Output Resistance (ICC = 3.0 mA)
Dropout Voltage ( V+ = 5.0 V)
VB Voltage (V+ = 7.5V)
Output Resistance ( IB = 1.7 mA)
ATTENUATORS
Receive Attenuator Gain (@1.0 kHz)
RX Mode, Pin 24 = VB;
Pin 27 = 250 mVrms
Range ( RX to TX Modes)
Idle Mode, Pin 27 = 250 mVrms
RXO Voltage ( RX Mode)
Delta RXO Voltage (Switch from RX to TX
Mode)
RXO Sink Current (RX Mode)
RXO Source Current (RX Mode)
RXI Input Impedance
Volume Control Range ( RX Attenuator Gain,
RX Mode, 0.6VB < Pin 24 < VB)
Transmit Attenuator Gain (@1.0 kHz)
TX Mode, Pin 3 = 250 mVrms
Range ( TX to RX Mode)
Idle Mode, Pin 3 = 250 mVrms
TXO Voltage ( TX Mode)
Delta TXO Voltage (Switch from TX to RX
Mode)
TXO Sink Current (TX Mode)
TXO Source Current (TX Mode)
TXI Input Impedance
ACF Voltage (VCC - Pin 25 Voltage)
RX Mode
Tx Mode
Idle Mode
SPEAKER AMPLIFIER
Speaker Amp Gain (Pin19 = 20mVrms)
SKI Input Impedance
SKO Voltage ( Pin 19 = Cap Coupled to
GND)
SKO High Voltage (Pin 19 = 0.1V, -100
mA load at Pin 15)
GSPK
RSKI
VSKO
VSKOH
15,
9
33
15
2.4
5.5
34
22
3.0
--
35
37
3.6
--
dB
kΩ
Vdc
Vdc
GRX
∆GRX
GRXI
VRXO
∆VRXO
IRXOL
IRXOH
RRXI
VCR
GTX
∆GTX
GTXI
VTXO
∆VTXO
ITXOL
ITXOH
RTXI
∆VACF
20,
25
75
1.0
3.5
3,
4
26,
27
2.0
40
-20
1.8
--
75
1.0
3.5
24.5
4.0
40
-16.5
1.8
--
6.0
44
-16
2.3
--
--
--
5.0
--
6.0
44
-13
2.3
--
--
--
5.0
150
6.0
75
10
48
-12
3.2
100
--
3.0
8.0
32.5
8.0
48
-8.5
3.2
100
--
3.0
8.0
--
--
--
dB
dB
dB
Vdc
mV
uA
mA
kΩ
dB
dB
dB
dB
Vdc
mV
uA
mA
kΩ
mV
mV
mV
ROVCC
VCCSAT
VB
ROVB
21
--
--
2.5
--
6.0
80
2.9
250
20
300
3.3
--
ohm
mV
Vdc
ohm
--
--
--
http://www.belling.com.cn
-5-
Total
16 Pages
8/15/2006
Wrote by 2006
BELLING [ SHANGHAI BELLING CO., LTD. ]
