U4255BM-MFN Atmel, U4255BM-MFN Datasheet - Page 21

• 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
No.
6.3
6.4
6.5
6.6
6.7
6.8
7.1
7.2
7.3
7.4
7.5
7.6
8.1
8.2
8.3
8.4
8.5
8.6
9.1
9.2
9.3
9.4
9.5
9.6
9.7
7
8
9
Parameters
3
point
Noise figure (DSB)
Input resistance
Input capacitance
Maximum differential
output vltage
Output resistance
1
Minimum voltage gain
Temperature
coefficient of gain
Temperature
coefficient of gain
Input resistance
Input capacitance
Output resistance
1
Maximum voltage
gain
Gain control range
Noise figure
Input resistance
Input capacitance
Output resistance
2
FM supply current
AM/WB supply
current
Conversion
conductance
Noise figure (SSB)
3
intercept point
AM/WB output
resistance
Maximum differential
output voltage
AM/WB
rd
st
st
nd
rd
-order intercept
-order input
IF AM Amplifier, AM Mode (Bit 92 = 0, Bit 93 = 1)
IF FM Amplifier, FM Mode (Bit 92 = 1, Bit 93 = 0)
Mixer
Test Conditions
Generator resistance
200
Pin 2 AC-grounded
V
Bits 89, 90, 91 = 0
Bit 66 = 0
Bit 66 = 1
Pin 39 AC-grounded
Pin 39 AC-grounded
330
Generator resistance
2.5 k
Pin 39 AC-grounded
Bit 92 = 1, Bit 93 = 0
Bit 92 = 0, Bit 93 = 1
Generator resistance
330
Bit 92 = 0, Bit 93 = 1
V
S
S
= 8.5 V
= 8.5 V
(Pin 26)
load at Pin 30
S
= 8.5 V, T
26, 23,
43, 44
43, 44
43, 44
38, 30
30, 33
23, 24
23, 24
23, 24
23, 24
23, 24
1, 2
1, 2
Pin
38
38
30
33
33
30
24
26
amb
1
= 25°C.
Symbol
IP3
NF
IP3
NF
NF
TK
TK
FMmix
FMmix
IFAM
Mix2
max
Mix2
min
Min.
100
270
270
270
100
12
19
10
10
12
8
0.039
0.044
Typ.
120
330
330
330
132
1.6
10
21
16
26
20
14
10
23
5
5
1
2
Max.
400
400
400
23
16
12
U4255BM-M
dB V
dBµV
dB/K
dB/K
Unit
Vpp
Vpp
mA
mA
mS
k
k
k
k
dB
pF
dB
pF
dB
dB
dB
pF
dB
Type*
C
C
D
D
D
D
A
D
D
D
D
D
D
D
C
D
D
D
D
D
C
C
D
D
A
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