ATR4258 Datasheet, PDF (25/38 Pages) ATMEL Corporation – AM/FM RECEIVER IC

ATR4258
Electrical Characteristics (Continued)
Test conditions (unless otherwise specified): V_S = 8.5 V, T_amb = 25°C
No. Parameters
Test Conditions
Pin
Symbol Min.
Typ.
Max.
Unit
6.5 Input resistance
1, 2
1.6
kΩ
6.6 Input capacitance
Pin 2 AC-grounded
1
5
pF
6.7
Maximum differential
output voltage
V_S = 8.5 V
43, 44
12
Vpp
6.8 Output resistance
43, 44
100
kΩ
7 1^st IF FM Amplifier, FM Mode (Bit 92 = 1, Bit 93 = 0)
7.1 Minimum voltage gain Bits 89, 90, 91 = 0
38, 30
19
21
23
dB
7.2
Temperature
coefficient of gain
Bit 66 = 0
TK_min
0.039
dB/K
7.3
Temperature
coefficient of gain
Bit 66 = 1
TK_max
0.044
dB/K
7.4 Input resistance
Pin 39 AC-grounded
38
270
330
400
Ω
7.5 Input capacitance
Pin 39 AC-grounded
38
5
pF
7.6 Output resistance
30
8 1^st IF AM Amplifier, AM Mode (Bit 92 = 0, Bit 93 = 1)
270
330
400
Ω
8.1
Maximum voltage
gain
330 Ω load at pin 30 30, 33
16
dB
8.2 Gain control range
26
dB
8.3 Noise figure
Generator resistance
2.5 kΩ
NF_IFAM
17
dB
8.4 Input resistance
33
10
kΩ
8.5 Input capacitance
Pin 39 AC-grounded
33
1
pF
8.6 Output resistance
9
2^nd Mixer
30
270
330
400
Ω
9.1 FM supply current
Bit 92 = 1, Bit 93 = 0 23, 24
10
12
16
mA
9.2
AM/WB supply
current
Bit 92 = 0, Bit 93 = 1 23, 24
7
8
10
mA
9.3
Conversion
conductance
26, 23,
24
2
mS
9.4 Noise figure (SSB)
Generator resistance
330 Ω (pin 26)
23, 24
NF_Mix2
23
dB
9.5
3^rd-order input
intercept point
26
IP3_Mix2
132
dBµV
9.6
AM/WB output
resistance
Bit 92 = 0, Bit 93 = 1 23, 24
100
kΩ
Maximum differential
9.7 output voltage
V_S = 8.5 V
23, 24
12
Vpp
AM/WB
9.8
Maximum differential
output voltage FM
23, 24
1
Vpp
9.9 Input resistance
26
270
330
400
Ω
9.10 LO input voltage
22
80
500 mVpp
*) Type means: A =100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Type*
D
D
D
D
B
D
D
D
D
D
D
D
D
D
D
D
A
A
D
C
C
D
D
D
D
D
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4838A–AUDR–10/04