U4065B Datasheet, PDF (9/23 Pages) TEMIC Semiconductors – FM Receiver

U4065B
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 ground (Pins 2, 8, 14, 20 and 22),T_amb = 25_C, unless otherwise specified
Parameters
Test Conditions / Pins
Symbol Min.
Typ.
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
Temperature coefficient of
the gain at G_nom
1 dB compression at G_nom
–3 dB cutoff freq. at G_nom
Input resistance
Input capacitance
Between pins 21 and 7
Source impedance:
R_G21 = 200 W,
Load impedance:
R_L7 = 200 W
Pin 7
Pin 7
Pin 21
f = 10 MHz
Output resistance
Output capacitance
Pin 7
f = 10 MHz
Second IF preamplifier (IF 2)
Power gain
Between pins 5 and 3
Source impedance:
R_G5 = 200 W
Load impedance:
R_L3 =200 W
Noise figure
1 dB compression
Pin 3
–3 dB cutoff frequency
Pin 3
Parallel input resistance
Parallel input capacitance
Pin 5
f = 10 MHz
Parallel output resistance Pin 3
Parallel output capacitance ^{f = 10 MHz}
Voltage regulator
I_4min
0
I_4nom
70
I_4max
140
G_min
–2.5
2
G_nom
11
12
G_max
19
22
NF_min
7
NF_nom
9
NF_max
15
TKnom
+0.045
V_cnom
70
f_cnom
50
R_iIF1
270
330
C_iIF1
5
R_oIF1
270
330
C_oIF1
7
G_IF2
15
18
NF_IF2
7
V_comp
500
f_c
50
R_iIF2
270
330
C_iIF2
12
R_oIF2
50
C_oIF2
7
Regulated voltage
Pin 17
V_ref
3.7
3.9
Maximum output current Pin 17
I_ref
5
Internal differential
resistance,
Pin 17
r_d17
7
dc₁₇/di₁₇ when I₁₇ = 0
Power supply suppression f = 50 Hz, Pin 17
psrr
36
50
AGC input voltage thresholds (AGC threshold current is 10 mA at Pin 10)
IF2 input
IF & detector
Mixer input level of
wideband sensor
Pin 5
V_thIF2
85
86
Pin 9
V_thIFD
42
43
Between Pins 15 and 16
f_iRF = 100 MHz
V at pin 13 = 0 V
I through pin 13 = 0 A
V_thWB1
95
98
V_thWB2
85
87
Max.
2.5
16
28
400
400
19
400
4.9
50
92
48
100
90
Unit
mA
dB
dB
dB/K
mV
MHz
W
pF
W
pF
dB
dB
mV
MHz
W
pF
kW
pF
V
mA
W
dB
dBmV
dBmV
dBmV
dBmV
Rev. A3, 15-Oct-98
9 (23)