LA8519M Datasheet, PDF (14/29 Pages) Sanyo Semicon Device – I/O Switch/Voice Signal-Processing IC for Cordless Telephones

Continued from preceding page.
Pin No.
Pin
LA8519M
Notes
V_SP
39
39
KT-IN
• Key tone input
Equivalent circuit
REF
44 kΩ
VSP
V_SP
V_SP
• Transmitter input amplifier plus input. Since no ⁴¹
bias voltage is applied internally, a bias voltage
40
TI-IN
must be applied through a resistor from the REF ⁴⁰
42
41
TI-NF
pin (pin 61).
42
TI-OUT
• Transmitter input amplifier minus input
• Transmitter input amplifier output
43
TA-IN
• Input for the line output
V_SP
43
REF
40 kΩ
44
DTMF-IN
• DTMF input
V_SP
REF
V_SP
20 kΩ
44
Continued on next page.
No. 6471-14/29