BT1062A Kodenshi Korea Corp., BT1062A Datasheet

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BT1062A

Manufacturer Part Number
BT1062A
Description
Telephone Speech Network With Dialer Int`erface
Manufacturer
Kodenshi Korea Corp.
Datasheet
1.BT1062A.pdf (9 pages)
Line Voltage
Operating Line Current
Normal Operation
with Reduced Performance
Internal Supply Current
Supply Voltage for Peripherals
Voltage Gain
microphone amplifier
receiving amplifier
Line loss compensation
Gain Control
Exchange Supply Voltage
Exchange Feeding bridge Resistance
TELEPHONE SPEECH NETWORK
WITH DIALER INT`ERFACE
DESCRIPTION
The
electronic telephone sets. They perform electronic switching between dialing and speech. The ICs operates at line voltage down
to 1.6 V DC (with reduced performance) to facilitate the use of more telephone sets connected in parallel.
All statements and values refer to all versions unless otherwise specified. The
16-pin plastic DIP and special plastic DIP with internal heatsink is also available.
QUICK REFERENCE DATA
FEATURES
- Low DC line voltage; operates down to 1.6V (excluding
- Voltage regulator with adjustable static resistance
- Provides a supply for external circuits
- Symmetrical high-impedance inputs (64 k:) for
- Asymmetrical high-impedance input (32 k:) for electret
- DTMF signal input with confidence tone
-
- Receiving amplifier for dynamic, magnetic or
- Large gain setting range on microphone and earpiece
- Line loss compensation (line current dependent) for
- Gain control curve adaptable to exchange supply
- DC line voltage adjustment facility
dynamic, magnetic or piezo-electric microphones
microphone and earpiece amplifiers
Mute input for pulse or DTMF dialing
polarity guard)
microphones
piezo-electric earpieces
amplifiers
- KKA1062: active HIGH (MUTE)
- KKA1062A: active LOW (MUTE)
KKA1062 and KKA1062A
Characteristic
are integrated circuits that perform all speech and line interface functions required in fully
Symbol
V
R
'G
V
V
I
I
G
line
exch
exch
CC
LN
CC
V
V
Test Condition
I
V
I
KKA1062 (KKA1062A)
line
I
line
p
I
CC
= 1.2mA
p
= 15mA
= 0mA
= 15mA
GAS2
GAS1
STAB
GAR
MIC-
MIC+
= 2.8V
OR
LN
2
3
1
4
5
6
7
8
PIN CONNECTION
BT1062A
KKA1062A
KKA1062
KKA1062/1062A
is packaged in a standard
Min
3.55
2.2
2.2
0.4
11
44
20
36
or
1
TECHNICAL DATA
Typ
4.0
2.0
0.9
2.7
3.4
5.8
12
11
16
15
14
13
10
9
Max
4.25
1.35
140
11
52
31
60
SLPE
AGC
REG
V
DTMF
IR
V
MUTE
1
CC
EE
Unit
mA
mA
mA
V
k:
dB
dB
dB
V
V
V
dc

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BT1062A Summary of contents

Page 1

... 2. 15mA CC line I = 1.2mA 0mA exch R exch TECHNICAL DATA KKA1062/1062A 16 SLPE 15 AGC REG 14 KKA1062 BT1062A KKA1062A 12 MUTE DTMF packaged in a standard Min Typ Max Unit 3.55 4.0 4. 140 0.9 1. 2.2 2.7 2.2 3.4 ...

Page 2

... BLOCK DIAGRAM BT1062A KKA1062A 7 MIC+ 6 MIC- 11 DTMF dB (1) 12 MUTE SUPPLY AND REFERENCE 9 V REG EE (1) Pin 12 is active HIGH (MUTE) for KKA1062. Fig.1 Block diagram for KKA1062A - + + - + - CONTROL LOW VOLTAGE CURRENT CIRCUIT CURRENT REFERENCE AGC STAB KKA1062/1062A ...

Page 3

FUNCTIONAL DESCRIPTION Supplies V , LN, SLPE, REG and STAB CC Power for the IC and its peripheral circuits is usually obtained from the telephone line. The supply voltage is delivered from the line via a dropping resistor and regulated ...

Page 4

Automatic line loss compensation is achieved by connecting a resistor (R6) between AGC and The automatic gain control varies the gain of the microphone amplifier and the receiving amplifier in accordance with the DC line current. The ...

Page 5

ELECTRICAL CHARACTERISTICS I = 11mA 800Hz line EE A Characteristic Voltage Drop over Circuit between LN and V EE Variation with Temperature Voltage Drop over Circuit Between LN and V ...

Page 6

Output Voltage (RMS value) Gain adjustment input GAR (Pin 5) Receiving Amplifier Gain Variation by adjustment of R4 between GAR and QR Mute input (Pin 12) HIGH Level Input Voltage LOW Level Input Voltage Input Current Reduction of Gain MIC+ ...

Page 7

Fig. 5 Variation of gain as a function of the line current with parameter TABLE 1 Values of resistor R6 for optimum line-loss compensation at various values of exchange supply voltage ( > . ...

Page 8

APPLICATION INFORMATION KKA1062A Fig. 6 Typical application of KKA1062A, with piezo-electric earpiece and DTMF dialling KKA1062/1062A ...

Page 9

0.25 (0.010 NOTES: 1. Dimensions “A”, “B” do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side ...

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