AN6425K Panasonic, AN6425K Datasheet

no-image

AN6425K

Manufacturer Part Number
AN6425K
Description
Speech Network Circuit
Manufacturer
Panasonic
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
AN6425K
Manufacturer:
NS
Quantity:
10
Price:
AN6425K
Speech Network Circuit
speaker amplifier. It incorporates a transmitter-system non-lin-
ear circuit, receiver digital VRs, etc. and is suitable for realiz-
ing the multifunctional telephone sets.
Speech network IC for the multifunctional telephone sets
Capable of interfacing with the light-weight small receivers
and ECM transmitters
Built-in 2V REG constant voltage source (2V typ) for ECM
Built-in non-linear circuits in the transmitter and receiver
systems in order to eliminate ambient noises
Built-in speaker amplifier and capable of driving with a main
wire current
Built-in hold-tone amplifier, key-in-tone amplifier, and
DTMF transmitter, and capable of setting the mode with the
control pins
Automatic gain control (automatic pad function) according to
a circuit curret
Built-in tertiary active filter circuit and capable of sending a
DTMF circuit with much higher harmonic at a low distortion
factor
Built-in single touch receiver volume-up function (about
6dB)
The AN6425K is a high-function speech network IC with
Overview
Features
Block Diagram
GND
VL
28
1
1V
2V
27
2
1V REFF
2V REG
26
CLASS A
Push pull
3
Selector
Battery
25
4
SP
Amp.
24
5
1V
VL
65k
+
REC
DRIVER
CLASS B
BTL
30k
23
6
SEND
Amp
2k
22
7
DRIVER
30k
D12
dB
REC
+
MUTE
21
8
2k
20
9
80k
Amp.
3 to 15˚
Filter
28-pin Shrunk DIL Plastic Package (SDIP028-P-0400B)
+
19
10
10
11
12
13
14
1
2
3
4
5
6
7
8
9
D6dB
10.16 0.25
8.4 0.3
18
11
D5dB
D3dB
DVR
28
27
26
25
24
23
22
21
20
19
18
17
16
15
D3dB
17
12
KT
TT
MIC
in
HT
40k
4.8 0.25
in
REC
in
16
13
INV
NAND
4k
3.05 0.25
Logic
1.05 0.25
Unit : mm
15
14

Related parts for AN6425K

AN6425K Summary of contents

Page 1

... AN6425K Speech Network Circuit Overview The AN6425K is a high-function speech network IC with speaker amplifier. It incorporates a transmitter-system non-lin- ear circuit, receiver digital VRs, etc. and is suitable for realiz- ing the multifunctional telephone sets. Features • Speech network IC for the multifunctional telephone sets • ...

Page 2

Absolute Maximum Ratings (Ta=25˚C) Parameter Supply voltage Supply current Power dissipation Operating ambient temperature Storage temperature * V I <1200mW CC CC Recommended Operating Range (Ta=25˚C) Parameter Symbol Operating supply voltage range V L Electrical Characteristics (Ta=25˚C) Parameter Symbol G ...

Page 3

Electrical Characteristics (cont.) (Ta=25˚C) Parameter Symbol AP TOUCH TONE D automatic pad (TOUCH amplifier gain (SP) THD SP distortion factor (SP =30mA and Freq=1kHz unless otherwise specified. L Pin Descriptions Pin No. Pin name Typical ...

Page 4

Pin Descriptions (cont.) Pin No. Pin name Typical waveform W/o External Capafitor Noise precentice peak hold pin. 8 Mute Connect to GND via W/External Capafitor 9 LPF (1) Transmitter filter pin. Constitutes the tertiary active filter with ...

Page 5

Pin Descriptions (cont.) Pin No. Pin name Typical waveform KT/HT 1V KT/HT signal input pin, Digital VR ON Pin. Inputs a KEY IN TONE or HOLD TONE signal. If the Pin14 is set to Low, KT/HT input the KT signal ...

Page 6

Pin Descriptions (cont.) Pin No. Pin name Typical waveform Speaker output (1) pin out (1) 1V Speaker output (1) pin. Output of the class-A differential ampli- fier and connected to the speaker through the transformer (300 ) with ...

Page 7

Characteristics Curve V – I Characterristic Impedance 6. 100 120 0 20 Circuit Current I (mA) Circuit Current ...

Page 8

Application Circuit 100kB F 0.0022 10k F 0.0082 F 0.1 F 0.22 6.8k F 0.01 F 0.001 F 0. 0.068 F 0.01 F/16V 47 6.2k 12k F 0.01 2.7k F/16V 10 F/16V 10 F 0.01 F 0.033 ...

Related keywords