AN618 Panasonic Semiconductor, AN618 Datasheet - Page 16
AN618
Manufacturer Part Number
AN618
Description
Recording and playing amplifier IC for answering telephones
Manufacturer
Panasonic Semiconductor
Datasheet
1.AN618.pdf
(21 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AN6180K
Manufacturer:
OKI
Quantity:
6 242
AN6175K
16
Pin No.
Detailed Pin Descriptions(cont.)
10
11
6
7
8
9
TVR
TLI1
TLI2
RLI1
RLI2
TLO1
Symbol
[LOG amp.(1)input(from MIC amp. out-
put)]
This pin connects through C9(0.1 F)and
R15(5.1 k )to the MIC amp. output.
[LOG amp.(2)input(from hands-free
control output)]
This pin connects through C10(0.1 F)and
R16(5.1 k )to the HF control output.
[LOG
preamp. output)]
This pin connects through C11(0.1 F)and
R17(5.1 k )to the receiver preamp. out-
put.
[LOG amp.(3)input(from loudspeaker
amp. output)]
This pin connects through C12(0.1 F)and
R18(5.1 k )to the loudspeaker amp. out-
put.
[LOG amp.(1)output]
Outputs amplified MIC amp. output.
Grounded through C13(2.2
attack recovery time of the attenuator
changes with the capacitance of C13.
[Noise detecting circuit reference]
This pin must be grounded through C8
(22 F).
amp.(4)input(from
Description
receiver
F). The
10
7
8
9
Equivalent circuit
–
ICs for Telephone
–
–
–
–
V
CC
1
11
6