tea1085t NXP Semiconductors, tea1085t Datasheet - Page 5

• Manufacturer Part Number: tea1085t
• Description: Listening-in Circuit For Line-powered Telephone Sets
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PIN CONFIGURATION
March 1992
SYMBOL PIN
V
SUP
SDC
SREF
LSI1
LSI2
GSC2
GSC1
LAI
LAI
QLA
LLC
THL2
THL1
DTI
DCA
SIC
VA
PD
MUTE
QLS1
QLS2
DLC
V
SS
BB
Listening-in circuit for line-powered
telephone sets
10
12
13
14
15
16
17
18
19
20
21
22
23
24
11
1
2
3
4
5
6
7
8
9
negative supply
positive supply
supply amplifier decoupling
supply reference input
loudspeaker amplifier input 1
loudspeaker amplifier input 2
logic input 2 for gain select
logic input 1 for gain select
Larsen limiter preamplifier inverting
input
Larsen limiter preamplifier
non-inverting input
Larsen limiter preamplifier output
Larsen limiter capacitor
Larsen limiter residual threshold level
Larsen limiter attack delay threshold
level
Larsen limiter detector input
Larsen limiter detector current
adjustment
Larsen limiter current stabilizer
V
power-down input
MUTE input
loudspeaker amplifier output 1
loudspeaker amplifier output 2
dynamic limiter capacitor
stabilized supply decoupling
BB
voltage adjustment
DESCRIPTION
5
handbook, halfpage
SREF
GSC2
GSC1
SUP
SDC
LSI1
LSI2
LAI
LAI
V SS
QLA
LLC
Fig.2 Pin configuration.
10
11
12
1
2
3
4
5
6
7
8
9
TEA1085; TEA1085A
TEA1085A
TEA1085
MLA415
Preliminary specification
15
14
13
19
18
17
16
24
23
22
21
20
V BB
DLC
QLS2
QLS1
MUTE
PD
VA
SIC
DCA
DTI
THL1
THL2