ATR4252 Datasheet, PDF (7/10 Pages) ATMEL Corporation – All-in-One IC Solution for Active Antennas

ATR4252 [Preliminary]
5. Electrical Characteristics
Verified on test circuits (demo design made by Atmel), V_S = 10 V, T_amb = 25°C, unless otherwise specified
No. Parameters
Test Conditions
Pin
Symbol
Min.
Typ.
AGC OFF
VS, FMC,
AM LNA OUT
Is
77
1.1 Supply current
FMAGC ON
VS, FMC,
AM LNA OUT
Is
85
T_amb = –40 to +105°C;
FMAGC ON
VS, FMC,
AM LNA OUT
Is
2 AM LNA+ Buffer⁽²⁾
2.1 Input capacitance
2.4 Voltage gain
f = 1 MHz
f = 1 MHz
AM LNA IN
C_AMLNAIN
12
AM/FM-OUT
9
2.5 Input noise voltage
Buffer OUT,
R_BIAS = 4.7 MΩ, B = 9 kHz
f = 1 MHz
Antenna
Dummy Input
V_N
–12
2.7
Maximum operating
frequency
3 dB corner
AM/FM-OUT
30
AM/FM Out;
2.8 OIP3⁽¹⁾
f_inp = 1 MHz + 1.1 MHz,
V_out = 110 dBµV,
1K II 500 pF load,
Vs = 10V
144
AM/FM Out;
2.9 OIP2⁽¹⁾
f_inp = 1 MHz + 1.1 MHz,
V_out = 110 dBµV,
1K II 500 pF load,
Vs = 10V
170
4 AM AGC
4.1 Input resistance
4.2 Input capacitance
f = 1 MHz
4.4
3 dB corner frequency
AGC threshold increased by
3 dB
AM DET
AM DET
AM PD
R_AMDET
C_AMDET
40
50
2.6
3.2
30
4.5 Saturation voltage
10 mA
AM PD
VS – 1.9
4.6 Leakage current
AM PD
4.7
Maximum PIN Diode
current
AGC active
AM PD
22
35
5 FM Amplifier
5.3 Supply current
5.4 Supply current ⁽³⁾
5.5
Maximum output
voltage
Common base
Common emitter
V_s = 10V
FMC
FMC
FMC
I_FMC
I_FMC
29
35
12
5.6 Input resistance
5.7
Maximum operating
frequency
f = 100 MHz
3 dB corner,
common emitter
FM IN
FM OUT
R_FMIN
50
450
5.8 Output resistance
f = 100 MHz
Notes: 1. AGC Loop deactivated
FM OUT
R_FMOUT
50
2. Measured with antenna dummy.
Max.
95
99
3.8
4
Unit
mA
mA
mA
pF
dB
dBµV
MHz
dBµV
dBµV
kΩ
pF
MHz
V
µA
mA
mA
mA
V_pp
Ω
MHz
Ω
7
9154AS–AUDR–09/09