U4065B Datasheet, PDF (16/34 Pages) TEMIC Semiconductors – FM Receiver

Electrical Characteristics (Continued)
V_S = 8.0 V, f_RF = 98 MHz, f_OSC ≅ 108.7 MHz, f_IF = f_OSC - f_RF = 10.7 MHz
Reference point is ground (pins 2, 8, 14, 20, and 22),T_amb = 25°C, unless otherwise specified.
Parameters
Test Conditions
Pin
Symbol Min.
First IF Preamplifier (IF 1)
Gain control deviation by I₄
Gain control slope
External control current to ground
At G_min
At G_nom
At G_max
Power gain
At I_4min
At I_4nom
At I_4max
Noise figure
At G_max
At G_nom
At G_min
Source impedance:
R_G21 = 200 Ω,
Load impedance:
R_L7 = 200 Ω
Temperature coefficient of the gain
at G_nom
1 dB compression at G_nom
-3 dB cut-off frequency at G_nom
Input resistance
f = 10 MHz
Input capacitance
f = 10 MHz
Output resistance
f = 10 MHz
Output capacitance
f = 10 MHz
Second IF Preamplifier (IF 2)
4
4
dG_IF1/dI₄
I_4min
I_4nom
I_4max
Between 21 and 7
G_min
G_nom
G_max
Between 21 and 7
7
7
21
21
7
7
NF_min
NF_nom
NF_max
TKnom
V_cnom
f_cnom
R_iIF1
C_iIF1
R_oIF1
C_oIF1
17
-2.5
11
19
270
270
Power gain
Noise figure
1 dB compression
-3 dB cutoff frequency
Parallel input resistance
Parallel input capacitance
Parallel output resistance
Parallel output capacitance
Voltage Regulator
Source impedance:
R_G5 = 200 Ω
Load impedance:
R_L3 = 200 Ω
f = 10 MHz
f = 10 MHz
f = 10 MHz
f = 10 MHz
Between 5 and 3
G_IF2
15
NF_IF2
3
V_comp
3
f_c
5
R_iIF2
270
5
C_iIF2
3
R_oIF2
3
C_oIF2
Regulated voltage
Maximum output current
Internal differential
resistance, dc₁₇/di₁₇ when I₁₇ = 0
Power supply suppression
f = 50 Hz
17
V_ref
3.7
17
I_ref
5
17
r_d17
17
psrr
36
Typ. Max.
20
24
0.15
0
70
140
2
2.5
12
16
22
28
7
9
15
+0.045
70
50
330 400
5
330 400
7
18
19
7
500
50
330 400
12
50
7
3.9
4.9
7
50
50
Unit
dB
dB/µA
µA
dB
dB
dB/K
mV
MHz
Ω
pF
Ω
pF
dB
dB
mV
MHz
Ω
pF
kΩ
pF
V
mA
Ω
dB
16 U4065B
4807A–AUDR–05/04