U4255BM-MFN Atmel, U4255BM-MFN Datasheet - Page 27

• Manufacturer Part Number: U4255BM-MFN
• Description: IC RCVR AM/FM FRONT-END 44-SSOP
• Manufacturer: Atmel

Specifications of U4255BM-MFN

• Frequency: 70MHz ~ 160MHz
• Modulation Or Protocol: AM, FM
• Applications: AM/FM Radio Receiver
• Current - Receiving: 50mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 7.5 V ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -

4519A–AUDR–03/02
Figure 16. Deviation Sensor Frequency Response
FM frequency deviation: 22.5 kHz
Figure 17. FM Input Level Sweep
Soft mute threshold Bits 68, 69 = 0, Bit 70 = 1; soft mute gain Bit 67 = 1
gain FM IF amplifier Bit 89 = 1, Bits 90, 91 = 0
0.0
0.5
1.0
-20
-30
-40
-60
-50
-70
-10
100
10
0
-20
0
FM modulation frequency (Hz)
20
1000
Signal
Input level (dBµV)
40
60
Noise
10000
Sensor output
80
100
U4255BM-M
100000
120
5
4.5
4
3.5
3
2.5
2
1.5
1
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