U2329B
VHF/ UHF-Tuner-IC
Description
This tuner IC requires a power supply of 9 V and performs
the function of two separate oscillators and mixers,
SAWF-driver and dual-sate band switch. Applications are
9 V TV-and VCR-tuners.
Features
D
9 V supply voltage
D
Frequency range from 48 to 860 MHz
D
Band A: balanced high impedance mixer input and
amplitude controlled oscillator
D
SAW filter driver with low impedance output
D
Voltage regulator for stable operating characteristics
D
ESD protection on all pins except oscillator pins and
RF-inputs
D
Band B: balanced low impedance mixer input and
symmetrical oscillator
Benefits
D
The small SO20 package allows to develop small and
economic 2-band tuners
Block Diagram
1
3
4
6 5 7
15
2
Osc. A
Osc. B
Voltage stabiliser
Band switch
8
Mixer output
SAW–filter driver
13
14
10
RF
Band A
19
18
20
17
Band B
95 10713
9
16
12 11
Figure 1. Block diagram
TELEFUNKEN Semiconductors
Rev. A2, 29-May-96
1 (7)
U2329B
Pin Configuration
Osc A, base
1
20
19
18
17
16
15
14
13
12
11
95 10928
GND (RF)
RF in, A
RF in, A
RF in, B
RF in, B
V
S
Mix, out
Mix, out
SAWF, inp.
SAWF, in.p.
Pin
1
2
3
4, 7
5, 6
8
9, 10
11, 12
13, 14
15
16, 17
18, 19
20
GND (common) 2
Osc A, coll.
Osc B, base
Osc B, coll.
Osc B, coll.
Osc B, base
Band sw.
SAWF, out
3
4
5
6
7
8
9
Symbol
Osc A, base
GND
(common)
Osc A, coll.
Osc B, base
Osc B, coll.
Band sw.
SAWF, out
SAWF, inp.
Mix, out
V
S
RF in, B
RF in, A
GND (RF)
Function
Oscillator band A, base
Ground, common
Oscillator band A, collector
Oscillator band B, bases
Oscillator band B, collectors
Dual-state band switch
SAW filter driver outputs
SAW filter driver input
Mixer outputs, open collector
Supply voltage V
s
RF inputs, band B
RF inputs, band A
Ground, RF part
SAWF, out. 10
Ordering Information
Extended Type Number
U2329B-FLG3
Package
SO20
Remarks
Taped and reeled
Absolute Maximum Ratings
All voltages are referred to GND, Pin 2
Parameters
Supply voltage
RF inputs
IF outputs
Dual-state switch voltage
Junction temperature
Storage temperature
Pin 15
Pin 16-19
Pin 13-14
Pin 8
Symbol
V
S
Min.
Typ.
Max.
10.5
5.0
10.5
10.5
125
125
Unit
V
V
V
V
°C
°C
ViDSW
T
jmax
T
stg
–40
Operating Range
All voltages are referred to GND, Pin 2
Parameters
Test Conditions / Pins
Supply voltage
Pin 13-15
Ambient temperature
Thermal resistance
Test conditions page 4
Symbol
V
S
T
amb
R
thJA
Min
8.1
–25
Typ
9
90
Max
9.9
75
Unit
V
°C
K/W
2 (7)
TELEFUNKEN Semiconductors
Rev. A2, 29-May-96
U2329B
Electrical Characteristics
Test conditions (unless otherwise specified): V
s
= 9 V. T
amb
= 25
°C.
Reference point Pin 2
Parameters
Test Conditions / Pins
Supply voltage
Pin 13-15
Supply current
Pin 13-15
Band switch
Voltage band A
Pin 8
Voltage band B
Pin 8
Switching current
VSW = 5 V
Pin 8
SAW filter driver
fi = 36 MHz
Input impedance
Pin 11, 12
Output impedance
Pin 9, 10
Voltage gain
11, 12
→
Pin 9, 10
Band A
(note 1)
Input frequency range
Pin 18
Input impedance
Pin 18
Gain (note 4)
Pin I/P to O/P
Noise figure DSB (note 2):
Pin I/P to O/P
fiA = 50 MHz
fiA = 150 MHz
Input level for (note 3):
Each carrier
IM3 (interm. of 3rd order
fiA = 71 MHz
Pin I/P
IM2 (interm. of 2nd order)
fiA = 71 MHz
Pin I/P
Band B
(note 1)
Input frequency range
Pin 16, 17
Input impedance
Figure 3
Pin 16, 17
Gain (note 4)
Pin I/P to O/P
Noise figure DSB (note 2)
Pin I/P to O/P
fiB = 500 MHZ
fiB = 800 MHz
Input level for IM3
Each carrier
(intem. of 3rd order, note 3) fiB = 600 MHz
Pin I/P
Notes
1)
2)
3)
4)
Symbol
V
S
I
S
VSWA
VSWB
ISW
ZiSAW
ZoSAW
GvSAW
fiA
S11A
GA
NF
NF
ViA
ViA
fiB
S11B
GB
NF
NF
ViB
Min
8.1
Typ
9.0
42
0
4.0
Max
9.9
Unit
V
mA
V
V
m
A
0
3.4
1.0
5.0
100
450
70
17
48
see Fig. 3
28
11.5
12
–23
–22
470
32
10.5
11.5
–25
860
8
470
W
dB
MHz
dB
dB
dB
dBm
dBm
MHz
dB
dB
dB
dBm
The RF input B is symmetrical driven by means of a hybrid for 180° phase shifting, consequently the source
impedance is 100
W
. All other impedance for RF tests is 50
W
.
The noise figure (NF) is the value for double-side-band measurement.
The intermodulation test (2-carrier-method) which is made on IF-center is in reference to a signal-to-IM ratio
of 60 dB.
Gain is the ratio of the voltage at the primary coil of L5 to the available voltage at the input.
TELEFUNKEN Semiconductors
Rev. A2, 29-May-96
3 (7)
U2329B
Test and Principle Application Circuit
Band B
UHF
Band A
VHF
I/P
Hybrid 0 / 180 degree with 50 ohms Z(in)
and 100 ohms (2x50) Z(out)
VS
15p
10n
L6
1n 1n
IF : PC 38.9 MHz
SC 33.4 MHz
180
o
I/P
1n 1n 1n 1n
Air Coils 0.6 mm
enamelled copper wire
L1 2 turns 2.5 mm dia
L2 8 turns 3.5 mm dia
L3 3 turns 2.5 mm dia
L4 3 turns 2.5 mm dia
TOKO–Coils
L5 12+2 turns
L6 6+6 turns
2p2
Bd. I/III
17
13
The output voltage of the
IF is calculated back to the
primary coil of L5
1n
L5
IF–Out
O/P
15p
1
2p2
BB515
5
9
1p0
1p0
1p0
1p0
1k5
L1
18k
BB619
1n
L3
2k2
L4
100p
18k
1n
USW
BA282
L2
820p
68p
18k
VT
8p2
18k
BB515
95 10714
Figure 2. Test and principle application circuit
PCB for the R
thJA
-Measurement
Material: 35
m
m one-sided Cu-coated epoxy PCB,
40 mm x 40 mm x 1.5 mm
R(th) SO20
95 10715
Figure 3. PCB for the R
thja
-measurement
4 (7)
TELEFUNKEN Semiconductors
Rev. A2, 29-May-96
U2329B
Input Impedance Mixer Band A (S11A) and B (S11B)
j
0.5j
2j
0.2j
–0.2j
1
–0.5j
95 9928
–j
Figure 4. Input impedance mixer band A (S11A) and B (S11B)
1)
VHF-Low
Normalised to 50
W
, measuring range 45 MHz to 750 MHz.
VHF-High and UHF
Normalised to 50
W,
measuring range 45 MHz to 1045 MHz. Input is driven symmetrical. The output
impedance of hybrid is 100
W
, the measured level is then calculated in reference to 50
W
.
2)
TELEFUNKEN Semiconductors
Rev. A2, 29-May-96
ÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁ
ÁÁÁ
0
0.2
45 MHz
0.5
1
2
750 MHz
Z
0
= 50
W
–2j
Á
Á
Á
Á
Á ÁÁ
Á ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁ
ÁÁÁÁÁ
ÁÁ
845 MHz
645 MHz
445 MHz
245 MHz
1045 MHz
2
5j
5
1
45 MHz
250 MHz
500 MHz –5j
5 (7)
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