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PDF IL34119 Data sheet ( Hoja de datos )
| Número de pieza | IL34119 | |
| Descripción | Low Power Audio Amplifier | |
| Fabricantes | ETC | |
| Logotipo |  |
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Low Power Audio Amplifier
TECHNICAL DATA
IL34119
The IL34119 is a low power audio amplifier integrated circuit
intended (primarily) for telephone applications, such as in
speakerphones. It provides differential speaker outputs to maximize
output swing at low supply voltages (2.0 volts minimum). Coupling
capacitors to the speaker are not required. Open loop gain is 80 dB,
and the closed loop gain is set with two external resistors. A Chip
Disable pin permits powering down and/or muting the input signal.
The IL34119 is available in a standard 8 pin DIP or a surface mount
package.
• Wide Operating Supply Voltage Range (2-16 Volts) - Allows
Telephone Line Powered Applications
• Low Quiescent Supply Current for Battery Powered Applications
• Chip Disable Input to Power Down the IC
• Low Power Down Quiescent Current
• Drives a Wide Range of Speaker Loads (8-100Ω)
• Output Power Exceeds 250 mW with 32Ω Speaker
• Low Total Harmonic Distortion
• Gain Adjustable from <0 dB to >46 dB for Voice Band
• Requires Few External Components
ORDERING INFORMATION
IL34119N Plastic
IL34119D SOIC
TA = -10° to 70° C for
all packages
PIN ASSIGNMENT
SIMPLIFIED BLOCK DIAGRAM
* = Optional
Differential Gain = 2 x Rf
Ri
1
1 page  
IL34119
ELECTRICAL CHARACTERISTICS(TA = -10 to +70°C, VCD = 0 V)
Symbol
Parameter
Test Conditions
AMPLIFIERS (AC CHARACTERISTICS)
ri AC Input Resistance (VIN)
AVOL1
AV2
GBW
Open Loop Gain (Amplifier
#1)
Closed Loop Gain (Amplifier
#2)
Gain Bandwidth Product
f = 100 Hz, VCC = 6.0 V,
VFC2 = 2.65 V
f = 1.0 KHz, VCC = 6.0 V,
RL=32 Ω
POUT3
POUT12
Output Power
THD Total Harmonic Distortion
PSRR Power Supply Rejection
VCC = 3.0 V, RL = 16 Ω,
THD ≤ 10%, VFC2 = 1.15 V
VCC = 12.0 V, RL = 100 Ω,
THD ≤ 10%, VFC2=12 V
VCC = 6.0 V, RL = 32 Ω,
f = 1.0 KHz, POUT = 125 mW
VCC = 6.0 V, ∆VCC = 3.0 V,
C1 =∞, C2 = 0.01 µF
GMT Muting
VCC = 6.0 V, f = 1.0 kHz,
CD = 2.0 V
POWER SUPPLY
ICC1 Maximum Power Supply
ICC2 Current
* @25°C
VCC =3.0 V, RL =∞,CD=0.8V
VCC =3.0 V, RL =∞,CD=2.0V
Guaranteed
Limits
Min Max
22.5 -
60 -
-0.35 +0.35
1.125
55
400*
-
-
-
- 5.0
35 -
50 -
- 5.0
- 125
Unit
MΩ
dB
dB
MHz
mW
%
dB
dB
mA
µA
Figure 1. POWER SUPPLY CURRENT
Figure 2. DEVICE DISSIPATION
8.0 Ω LOAD
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet IL34119.PDF ] | |
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