U4062B Datasheet, PDF (17/21 Pages) TEMIC Semiconductors – HF Front End for Car Radios and HiFi Receivers

U4062B
Coils Specifications
L₈/L₉
Toko 7 PL9/ (18 + 18) turns
Nr. 218 ANS – 788 N
L₁₀
Toko 7 Kl 3 turns
Nr. 291 ENS – 2054 IB or
Toko MC 122
Nr. E528 SNAS – 100075
L₁₁/L₁₂
Toko 7 Kl without case
4/8 turns
Nr. 291 ENF – 2342 x
L₁₃
Toko 7 Kl 4 turns
Nr. 291 ENS – 2341 IB or
Toko MC 122
Nr. E528 SNAS – 100076
L₁₄/L₁₇
Choke 1.5 mH
Toko 348 LS – 1R5 or similar
CF1; CF2 Toko CFSK – 107M3 or similar
V_S = 8.5 V, T_amb = 25°C
Electrical Connections
LO output
V_S
IF output
Ground
Mixer input
Reference output voltage
RF preamplifier
(collector)
RF preamplifier (base)
RF preamplifier (emitter)
AGC output
Ground
Mixer output
Mixer output
AGC input
IF input, IF gain control
AGC time constant
LO (base)
LO (emitter)
Pin
DIP18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Voltage (DC)
in V
1.73
8.5
6.1
0
1.7
1.7
8.5
1.3
0.53
0.07
0
8.5
8.5
1.7
1.54
1.06
3.2
2.51
FM Front End Data Using Application Circuit
Antenna impedance 75 W, Z_{load IF} = 330 W, V_S = 8.5 V, T_amb = 25°C
Characteristics
Symbol
Min.
Supply current
Tuning range
I_S
f
88
Tuning voltage
– at 88 MHz (equal IC’s reference voltage)
– at 108 MHz
Center IF
V_tune
V_tune
f
IF output bandwidth at –3 dB
B_IF
Power gain
G
Gain variation versus the band
DG
Noise figure
NF
Image rejection
57
RF intermodulation
1/2 IF rejection
Spurious response, second osc. harmonic
IF rejection
85
Osc. output voltage at 520 W load
V_OSC
* Depending on ceramic IF filters to be used
Typ.
32
1.7
6.5
10.7*
130*
46*
1
6
70
70
90
90
200
Max.
108
Unit
mA
MHz
V
V
MHz
kHz
dB
dB
dB
dB
dB
dB
dB
dB
mV
Rev. A1, 07-Dec-98
17 (21)