LA8519M Datasheet, PDF (13/29 Pages) Sanyo Semicon Device – I/O Switch/Voice Signal-Processing IC for Cordless Telephones

Continued from preceding page.
Pin No.
Pin
LA8519M
Notes
30
CE
• Chip enable input
31
DATA
• Data input
32
CLOCK
• Clock input
33
RESET
• Reset
Power on reset.
Equivalent circuit
V_CC
100 kΩ
30
31
1 kΩ
32
33
1.5 V
Logic
4.7 kΩ
• Pad control. The gain control based on line
current and the BN switching operating current
34
PAD C
can be controlled by connecting this pin through a
34
resistor to either ground or S-V_CC (pin 47).
22 kΩ
S-V_CC
V_SP
50 kΩ
REF
• Muting control. This pin switches the transmitted
audio and DTMF signals in the transmitter system
35
35
MUTE
and the KT and received signals in the receiver
1 kΩ
system. (Switches SW2 and SW3 in the block
diagram.) When low, the DTMF and KT signals
are enabled.
V_SP
37
36
RV-NF
• Receiver amplifier noise figure connection
37
RV-OUT1
• Receiver amplifier 1 output
V_SP
38
RV-OUT2
• Receiver amplifier 2 output
36
REF
38
10 kΩ
10 kΩ
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No. 6471-13/29