TSDF72830YS Datasheet, PDF (1/7 Pages) Vishay Siliconix – Dual - MOSMIC- two AGC Amplifiers for TV-Tuner Prestage with Integrated Band Switch for One-Line Switching

TSDF72830YS
Vishay Semiconductors
Dual - MOSMIC^®- two AGC Amplifiers for TV-Tuner Prestage
with Integrated Band Switch for One-Line Switching
Comments
MOSMIC - MOS Monolithic Integrated Circuit
Description
The Dual-MOSMIC^® TSDF72830YS, assembled in
the well-known SOT-363 plastic package, is a combi-
nation of two different MOSMIC^® amplifiers with com-
mon Source and common Gate 2 leads and an
integrated switch. One of the MOSMIC stages is opti-
mized for use in VHF applications, especially regard-
ing cross modulation performance and noise figure at
lower VHF frequencies, whereas the other stage is
optimized for use in UHF applications regarding gain
and noise figure performance at higher frequencies of
UHF range. The integrated switch is operated by the
Gate 1 bias of the UHF amplifier on Pin 3. All of the
Gates are protected against excessive input voltage
surges by integrated antiserial diodes between them-
selves and Source. Drain output pin of each stage
is opposite to corresponding Gate 1 input pin
what is called SOT-363L pin configuration with
Vishay.
Features
• Two differently optimized amplifiers in a
single package. One of them has a fully
internal self-biasing network on chip and
e3
the other has a partly integrated bias for
easy Gate 1 switch-off with PNP switching transis-
tors inside PLL -IC
• Internal switch for saving lines on PCB layout as
well as external components
• Integrated gate protection diodes
• Low noise figure, high gain
• Typical forward transadmittance of 31 mS
resp. 28 mS
• Superior cross modulation at gain reduction
• High AGC-range with soft slope
• Main AGC control range from 3 V to 0.5 V
• Lead (Pb)-free component
• Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
65 4
VY _WN7
CW
12 3
18981
Electrostatic sensitive device.
Observe precautions for handling
Applications
Low noise gain controlled VHF and UHF input stages
with 5 V supply voltage, such as in digital and analog
TV tuners and in other multimedia and communica-
tions equipment.
Typical Application
AGC
C
UHF
in
V_GG
C3
RG1
2
G2 (common)
G1 ^AMP2
D4
VHF
C
1
in
AMP1
6
D
G1
S (common)
5
V_GG = 5 V: UHF AMP is on; VHF AMP is off
V_GG = 0 V: UHF AMP is off; VHF AMP is on
(0 = shorted to Ground or open)
RFC
C
+5 V
UHF
out
RFC
C
+5 V
VHF
out
18982
Mechanical Data
Case: SOT-363L Plastic case
Weight: approx. 6.0 mg
V - Vishay
Y - Year, is variable for digit from 0 to 9
(e.g. 3 = 2003, 4 = 2004)
CW - Calendar Week, is variable for
number from 01 to 52
Number of Calendar Week is always indicating
place of pin 1
Pinning:
1 = Gate 1 (VHF amplifier), 2 = Gate 2 (common)
3 = Gate 1 (UHF amplifier), 4 = Drain (UHF amplifier),
5 = Source (common), 6 = Drain (VHF amplifier)
Document Number 85176
Rev. 1.1, 02-May-05
www.vishay.com
1