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參數(shù)資料
| 型號(hào)： | T4258NFN |
| 廠商： | ATMEL CORP |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO44 |
| 封裝： | SSOP-44 |
| 文件頁(yè)數(shù)： | 18/38頁(yè) |
| 文件大?。?/td> | 443K |
| 代理商： | T4258NFN |
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25
T4258N
4566B–AUDR–02/04
6.2
Conversion
conductance
1, 2,
43, 44
7mS
D
6.3
3rd-order intercept
point
1, 2
IP3
FMmix
125
dB
VC
6.4
Noise figure (DSB)
Generator resistance
200
43, 44
NF
FMmix
10
dB
C
6.5
Input resistance
1, 2
1.6
k
D
6.6
Input capacitance
Pin 2 AC-grounded
1
5
pF
D
6.7
Maximum differential
output vltage
V
S = 8.5 V
43, 44
12
Vpp
D
6.8
Output resistance
43, 44
100
k
D
71
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
B
7.2
Temperature
coefficient of gain
Bit 66 = 0
TK
min
0.039
dB/K
D
7.3
Temperature
coefficient of gain
Bit 66 = 1
TK
max
0.044
dB/K
D
7.4
Input resistance
Pin 39 AC-grounded
38
270
330
400
D
7.5
Input capacitance
Pin 39 AC-grounded
38
5
pF
D
7.6
Output resistance
30
270
330
400
D
81
st IF AM Amplifier, AM Mode (Bit 92 = 0, Bit 93 = 1)
8.1
Maximum voltage
gain
330
load at Pin 30
30, 33
16
dB
D
8.2
Gain control range
26
dB
D
8.3
Noise figure
Generator resistance
2.5 k
NF
IFAM
17
dB
D
8.4
Input resistance
33
10
k
D
8.5
Input capacitance
Pin 39 AC-grounded
33
1
pF
D
8.6
Output resistance
30
270
330
400
D
92
nd Mixer
9.1
FM supply current
Bit 92 = 1, Bit 93 = 0
23, 24
10
12
16
mA
A
9.2
AM/WB supply
current
Bit 92 = 0, Bit 93 = 1
23, 24
7
8
10
mA
A
9.3
Conversion
conductance
26, 23,
24
2mS
D
9.4
Noise figure (SSB)
Generator resistance
330
(pin 26)
23, 24
NF
Mix2
23
dB
C
9.5
3rd-order input
intercept point
26
IP3
Mix2
132
dBV
C
9.6
AM/WB output
resistance
Bit 92 = 0, Bit 93 = 1
23, 24
100
k
D
Electrical Characteristics (Continued)
Test conditions (unless otherwise specified): VS = 8.5 V, Tamb = 25°C
No.
Parameters
Test Conditions
Pin
Symbol
Min.
Typ.
Max.
Unit
Type*
*) Type means: A =100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
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