BA7760 Rohm Semiconductor, BA7760 Datasheet - Page 4

• Manufacturer Part Number: BA7760
• Description: IC AMP AUDIO STER AB MIC 14DIP
• Manufacturer: Rohm Semiconductor
• Type: Class ABr

Specifications of BA7760

• Output Type: 2-Channel (Stereo)
• Voltage - Supply: 6 V ~ 14 V
• Features: Mute
• Mounting Type: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Max Output Power X Channels @ Load: -

•
•
The BA7760 and BA7760F are dual microphone ampli-
fiers. The audio signals from the microphones are input
to pins 3 and 12. The gain at this time is determined by
attached resistors R3 / R4 and R6 / R7. By attaching
capacitors to pins 5 and 10, the microphone amplifiers
can be given frequency characteristics like those
shown below.
(Note: The attached component numbers are those used in “Application
Example.”)
4
Multimedia ICs
Measurement circuit
Circuit operation (Refer to “Application Example”)
470 F
47 F
+
+
5k
220
2.2k
10k
10 F
4.7 F
+
10
11
12
13
14
8
9
–
+
BA7760 / F
Fig. 2
MIX BF
+
–
+
–
– 20dB
60dB
40dB
20dB
0dB
1kHz 10kHz 100kHz 1MHz 10MHz 100MHz
7
6
5
4
3
2
1
Characteristics when using standard
components and standard constants
Fig. 3 Microphone amplifier
+
+
+
4.7 F
3 6 1
4.7 F
22 F
FREQUENCY : f (Hz)
frequency characteristics
2.2k
2.2k
3
BA7760 / BA7760F
220
6
1
5k
3
6
1
470 F
+
+
47 F
3
6
1
3
6
1
– 180
180
0