u4255bm ATMEL Corporation, u4255bm Datasheet - Page 3

• Manufacturer Part Number: u4255bm
• Description: Am/fm Receiver
• Manufacturer: ATMEL Corporation

Absolute Maximum Ratings
All voltages are referred to GND (Pin 25)
Thermal Resistance
Operating Range
All voltages are referred to GND (Pin 25)
Electrical Characteristics
Test conditions (unless otherwise specified): V
For AC parameters: fi
Rev. A1, 26-Jun-00
Supply voltage
Power dissipation
Junction temperature
Ambient temperature range
Storage temperature range
Junction ambient
Supply voltage range
Ambient temperature
Supply voltage
Supply current
AM Mixer (10.7 MHz)
DC supply current
Conversion conductance io
Maximum IF output
Third order input intercept point
Input resistance
AM-1st IF Amplifier (10.7 MHz)
Input resistance
1st IF amplifier gain
Preamplifier control range
Mixer 2 (450 kHz)
DC supply current
Conversion conductance io
Maximum IF output
Output impedance
Third order input intercept point
Input resistance
Parameters
RF
soldered to PCB
Parameters
Parameters
Parameters
= 100 MHz, Rg = 50 W , f
if
if2
/vi
/vi
rf
if1
Pin 42
Pin 42
RL = 330 W Pins 30 to 33
Test Conditions / Pins
S
= 8.5 V, T
MOD
Pins 43 and 44
Pins 23 and 24
= 0.4 kHz, ∆f = " 75 kHz, f
Pin 42
Pin 42
Pin 41
Pin 33
amb
Symbol
= 25°C
Symbol
Symbol
T
V
R
T
amb
T
P
V
S
T
amb
thJA
tot
stg
S
Symbol
j
vo
vo
S
S
IP3
IP3
V
R
C
I
R
R
G
m1
m2
S
S
IF
IF
o
o
i
i
Min.
–40
7.5
Min.
10
IF
–50 to +150
–40 to +85
= 450 kHz, reference point Pin 4
Value
Value
Typ.
800
150
8.5
10
80
Typ.
133
133
330
8.5
4.1
2.5
U4255BM
18
16
26
10
8
2
8
1
3
Max.
+85
10
Max.
10
70
K/W
Unit
Unit
mW
°C
°C
°C
dBµV
dBµV
mA/v
mA/v
V
Unit
Unit
MW
mA
mA
mA
°C
v
kW
kW
v
dB
dB
3 (12)
pF
V
W
V
pp
pp