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TEMIC Semiconductors
TEMIC Semiconductors

U2309B Datasheet Preview

U2309B Datasheet

VHF/ UHF-Tuner-IC

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U2309B pdf
VHF/ UHF-Tuner-IC
U2309B
Description
This tuner IC requires a power supply of 9 V and performs
the function of three separate oscillators an mixers,
SAWF-driver, L.O.-output and tri-state band switch.
Additional to TV-tuner application this IC is usable for
DAB (Digital Audio Broadcast) 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 Band B + C: balanced low impedance mixer input and
symmetrical oscillator
D Balanced L. O.-outputs for prescalers or PLL
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
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Benefits
D The integration of 3 bands and the small SSO28
package allows to design very small and economical
3-band tuners with high performance.
Block Diagram
13
4 65 7
Osc. A
Osc. B
8 10 9 11
Osc. C
19 2
Voltage stabiliser
Band switch
L.O.
12
27
28
Mixer output
SAW–filter driver
17
18
14
Band A
25 24
RF
Band B
Band C
23 22 26 21
Figure 1. Block diagram
20
16 15
13
95 10717
TELEFUNKEN Semiconductors
Rev. A2, 29-May-96
1 (8)



TEMIC Semiconductors
TEMIC Semiconductors

U2309B Datasheet Preview

U2309B Datasheet

VHF/ UHF-Tuner-IC

No Preview Available !

U2309B pdf
U2309B
Pin Description
Osc A, base 1
GND (common) 2
Osc A, coll. 3
Osc B, base 4
Osc B, coll. 5
Osc B, coll. 6
Osc B, base 7
Osc C, base 8
Osc C, coll. 9
Osc C, coll. 10
Osc C, base 11
Band sw. 12
SAWF, out 13
SAWF, out 14
28 L.O. out
27 L.O. out
26 GND (RF)
25 RF in, A
24 RF in, A
23 RF in, B
22 RF in, B
21 RF in, C
20 RF in, C
19 VS
18 Mix out
17 Mix out
16 SAWF, inp.
15 SAWF, inp.
95 10886
Pin
1
2
3
4, 7
5, 6
8, 11
9, 10
12
13, 14
15, 16
17, 18
19
20, 21
22, 23
24, 25
26
27, 28
Symbol
Function
Osc A, base Oscillator band A, base
GND Ground, common
(common)
Osc A, coll. Oscillator band A, collector
Osc B, base Oscillator band B, bases
Osc B, coll. Oscillator band B, collectors
Osc C, base Oscillator band C, bases
Osc C, coll. Oscillator band C, collectors
Band sw. Tri-state band switch
SAWF, out SAW filter driver outputs
SAWF, inp. SAW filter driver inputs
Mix out Mixer outputs, open collec-
tor
VS Supply voltage Vs
RF in, C RF inputs, band C
RF in, B RF inputs, band B
RF in, A RF inputs, band A
GND (RF) Ground, RF part
L.O. out L.O.-outputs
Ordering Information
Extended Type Number
U2309B-FLG3
U2309B-FSG3
Package
SO28
SSO28
Remarks
Taped and reeled
Taped and reeled
2 (8) TELEFUNKEN Semiconductors
Rev. A2, 29-May-96


Part Number U2309B
Description VHF/ UHF-Tuner-IC
Maker TEMIC Semiconductors
Total Page 8 Pages
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