TS487-2IST STMicroelectronics, TS487-2IST Datasheet - Page 3

• Manufacturer Part Number: TS487-2IST
• Description: 100mW stereo headphone amplifier with standby mode
• Manufacturer: STMicroelectronics

FIXED GAIN VERSION SPECIFIC ELECTRICAL CHARACTERISTICS
V
1.
APPLICATION COMPONENTS INFORMATION
TYPICAL APPLICATION SCHEMATICS
Components
CC
Symbol
R
R
C
See figure 30 to establish the value of Cin vs. -3dB cut off frequency.
from +5V to +2V, GND = 0V, T
IN 1,2
R
C
FEED1,2
OUT1,2
G
C
C
IN1,2
IN1,2
S
B
Input Resistance
Gain value for Gain TS486/TS487-1
Gain value for Gain TS486/TS487-2
Gain value for Gain TS486/TS487-4
Inverting input resistor which sets the closed loop gain in conjunction with R
forms a high pass filter with C
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminal.
Feedback resistor which sets the closed loop gain in conjunction with R
A
Supply Bypass capacitor which provides power supply filtering.
Bypass capacitor which provides half supply filtering.
Output coupling capacitor which blocks the DC voltage at the load input terminal.
This capacitor also forms a high pass filter with RL (fc = 1 / (2 x Pi x R
V
= Closed Loop Gain= -R
1)
amb
Parameter
= 25°C (unless otherwise specified)
FEED
IN
/R
(fc = 1 / (2 x Pi x R
IN
. Not needed in fixed gain versions.
Functional Description
IN
x C
IN
)) . Not needed in fixed gain versions.
Min.
L
IN
x C
.
OUT
FEED
12dB
Typ.
0dB
6dB
20
)).
. This resistor also
TS486-TS487
Max.
Unit
k
dB
3/31