U4083B-MFPY 19 Atmel, U4083B-MFPY 19 Datasheet - Page 3

• Manufacturer Part Number: U4083B-MFPY 19
• Description: IC AMP AUDIO LP TELEPHONE 8SOIC
• Manufacturer: Atmel

Specifications of U4083B-MFPY 19

• Function: Audio Amplifier
• Number Of Circuits: 1
• Voltage - Supply: 2 V ~ 16 V
• Current - Supply: 5mA
• Power (watts): 440mW
• Operating Temperature: -20°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Includes: Chip Disable
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 0.4(Min)x1@100OhmW
• Audio Amplifier Function: Speaker
• Single Supply Voltage (typ): 3/5/9/12/15V
• Dual Supply Voltage (typ): Not RequiredV
• Supply Current (max): 5@16VmA
• Power Supply Requirement: Single
• Power Dissipation: 440mW
• Unity Gain Bandwidth Product (typ): 1.5MHz
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 52dB
• Single Supply Voltage (min): 2V
• Single Supply Voltage (max): 16V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -20C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Compliant

3. Functional Description Including External Circuitry
3.1
3.2
4655C–CORD–03/06
Pin 1: Chip Disable Digital Input (CD)
Pins 2 and 3: Filtering, Power Supply Rejection
Pin 1 (chip disable) is used to power down the IC to conserve power or mute the IC or both.
Input impedance at Pin 1 is typically 90 k .
Figure 8-15 on page 12
from normal operation to muted operation (muting) is more than 70 dB.
Switching characteristics are as follows:
They are independent of C
Voltages at Pins 2 and 3 are supplied from V
is disabled. The outputs, V
removing the signal from the speaker.
When signals are applied from an external source to the outputs (disabled), they must not
exceed the range between the supply voltage, V
Power supply rejection is provided by capacitors C
dominant at high frequencies whereas C
to
For example, a line-powered speakerphone (telephone amplifier) will require more filtering than
a system powered by regulated power supply.
The amount of rejection is a function of the capacitors and the equivalent impedance at Pin 3
and Pin 2 (see electrical characteristic equivalent resistance, R).
Apart from filtering, capacitors C
up, since the capacitors are charged up through the internal resistors (50 k and 125 k ) as
shown in the block diagram.
Figure 8-1 on page 7
The turn-on time is 60% longer when V
The turn-off time is less than 10 µs.
• Logic 0 < 0.8V
• Logic 1 > 2V
• Turn-on time
• Turn-off time
Figure 8-7 on page
IC enabled (normal operation)
IC disabled
shows the turn-on time versus C
9). The values of C
t
t
on
off
shows the power supply current diagram. The change in differential gain
= 12 ms to 15 ms
2 µs
1
, C
O1
2
(Pin 5) and V
and V
1
and C
S
.
S
2
2
= 3V and 20% shorter when V
1
also influence the turn-on time of the circuit at power
is dominant at low frequencies
and C
O2
S
and, therefore, do not change when the U4083B
(Pin 8), turn to a high impedance condition by
S
2
, and ground.
1
depend on the conditions of each application.
and C
2
at V
2
at Pin 3 and Pin 2, respectively. C
S
= 6V, for two different C
S
= 9V.
(Figure 8-4 on page 8
U4083B
1
values.
1
is
3