TEA0677 NXP Semiconductors, TEA0677 Datasheet - Page 2

• Manufacturer Part Number: TEA0677
• Description: Dual Pre-amplifier and Equalizer for Reverse tape Decks
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
Note
1. SOT137-1; 1996 August 27.
August 1993
V
I
(S + N)/N
CC
EXTENDED TYPE
SYMBOL
Head pre-amplifiers
Reverse head switching
Equalization with electronically switched time constants
0 dB = 387.5 mV
Pin compatible to TEA0675 Dolby B, music search IC.
CC
Dual pre-amplifier and equalizer for
reverse tape decks
TEA0677T
NUMBER
supply voltage
supply current
signal-plus-noise to noise ratio
PINS
24
PARAMETER
PIN POSITION
SO
2
GENERAL DESCRIPTION
The TEA0677T is a monolithic bipolar integrated circuit
intended for applications in car radios. It includes head and
equalization amplifiers with electronically switchable time
constants. Furthermore it includes electronically
switchable inputs for tape drives with reverse heads. The
device is intended to replace the regular TEA0675T in
low-cost car radios using the same PCB. External
components that are necessary for Dolby B and music
search features can be omitted.
The device will operate with power supplies in the range of
7.6 V to 12.0 V, output overload level increasing with
increase in supply voltage. Current drain varies with
supply voltage, so it is advisable to use a regulated power
supply or a supply with a long time constant.
PACKAGE
7.6
68
MIN.
MATERIAL
plastic
10
23
74
TYP.
12
26
Product specification
MAX.
SOT137A
TEA0677T
CODE
V
mA
dB
(1)
UNIT