T4258-ILQ Atmel, T4258-ILQ Datasheet - Page 5

• Manufacturer Part Number: T4258-ILQ
• Description: IC RECEIVER AM/FM FRONT 44-SSOP
• Manufacturer: Atmel

Specifications of T4258-ILQ

• Frequency: AM, FM
• Modulation Or Protocol: AM, FM
• Applications: AM/FM Radio Receiver
• Current - Receiving: 100mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 8 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: -

Rev. A1, 10-Jan-01
Electrical Characteristics
Test conditions (unless otherwise specified): V
Rg = 50 W, f
FM AGC
AGC threshold mixer input
AGC threshold mixer output
AGC threshold IF amp. out
FM Mixer
Conversion transconductance
3rd order intercept point
Noise figure
Input resistance
Input capacitance
Input 1 resistance to ground
Input 1 capacitance to
ground
Input 2 resistance to ground
Input 2 capacitance to
ground
Output capacitance to GND
1st IF FM Amplifier
Digitally adjustable gain
Input resistance
Output resistance
Temperature coefficient of
the gain
Temperature coefficient of
the gain
Noise figure
Output intercept point 3rd
order
Parameter
MOD
= 0.4 kHz, Df = 75 kHz, f
(2 bit)
Load impedance:
R
f = 100 MHz
f = 100 MHz
f = 100 MHz
f = 100 MHz
3 bit, 10.7 MHz
Bit 66 = 0
Bit 66 = 1
L43, 44
Test Conditions / Pins
= 200
IF
S
= 450 kHz, reference point Pin 4
= +8.5 V, T
Pins 43, 44
Pin 1 to 2
Pin 1 to 2
Pin 1
Pin 1
Pin 2
Pin 2
Pin 38
Pin 30
amb
= +25 C, for AC parameters: fi
Symbol
Vmixin
Vif1out
Vmix-
NF
R
C
C
G
C
R
G
R
TK1
TK2
IP3
IP3
out
R
C
R
C
g
i 1, 2
i 1, 2
o 43,
o 44
max
o 30
min
i 38
F
i1
i1
i2
i2
c
dsb
Min.
t.b.d.
t.b.d.
t.b.d.
Typ.
103
125
330
330
130
85
90
95
10
20
30
7
5
9
7
5
RF
Max.
= 100 MHz,
T4258
dB V
dB V
dB V
dB V
dB V
dB V
mA/V
dB V
dB V
dB/K
dB/K
Unit
k
k
k
5 (17)
dB
dB
dB
dB
pF
pF
pF
pF