U4255BM-MFN Atmel, U4255BM-MFN Datasheet - Page 23

• 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: -

Electrical Characteristics (Continued)
Test conditions (unless otherwise specified): V
4519A–AUDR–03/02
*) Type means: A =100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
13.3
14.1
14.2
14.3
15.1
15.2
15.3
15.4
16.1
16.2
17.1
17.2
17.3
17.4
18.1
18.2
19.1
19.2
No.
14
15
16
17
18
19
Parameters
Maximum signal-to-
noise ratio
MPX Output
DC output voltage
Mute gain
Output resistance
Search Stop Detector, INT Output
LOW saturation
voltage
LOW output
resistance
HIGH saturation
voltage
HIGH output
resistance
Deviation Sensor, FM Mode (Bit 92 = 1, Bit 93 = 0)
Offset voltage
Output voltage
Field Strength Sensor, FM Mode (Bit 92 = 1, Bit 93 = 0, Bit 89-91 = 0, Bit 80 = 0)
Offset voltage
Output voltage
Field Strength Sensor, AM Mode (Bit 92 = 0, Bit 93 = 1, Bit 80 = 1)
Output voltage LOW
field strength
Output voltage HIGH
field strength
Multipath Sensor, FM Mode (Bit 92 = 1, Bit 93 = 0)
Offset voltage
Output voltage
Adjacent Channel Sensor, FM Mode (Bit 92 = 1, Bit 93 = 0), Bit 4 = 0 (Default BW Setting)
Offset voltage
Output voltage
Test Conditions
Modulation depth =
80%, f
74 dBµV at Pin 41
Bit 7 = 1
Bit 7 = 1,
FM dev. = ± 75 kHz,
f
Small signal
FM dev. = ±0 kHz
FM dev. = ±75 kHz,
f
No signal
Unmodulated signal
84 dBµV at Pin 1
63 dBµV at Pin 28
94 dBµV at Pin 28
Unmodulated signal,
60 dBµV at Pin 1
AM modulation depth
= 60%,
f
60 dBµV at Pin 1
Unmodulated signal
FM dev. = ± 50 kHz,
f
mod
mod
mod
mod
= 1 kHz
= 1 kHz
= 20 kHz,
= 1 kHz
mod
= 1 kHz,
S
= 8.5 V, T
Pin
11
11
11
11
21
21
21
21
31
31
40
40
10
10
amb
9
9
9
9
= 25°C.
Symbol
(S/N)
AM
Min.
2.15
4.5
1.7
0.4
2.7
0.7
2.3
1.4
52
Typ.
2.25
4.75
0.75
100
-70
0.3
2.0
3.0
0.9
2.5
1.8
0.6
54
60
20
20
0
1
Max.
150
200
300
-50
2.4
0.5
5.0
2.5
1.1
3.3
1.1
2.7
2.2
1.0
U4255BM-M
Unit
mV
mV
mV
k
k
dB
dB
V
V
V
V
V
V
V
V
V
V
Type*
D
D
D
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
23