ISG510067 Datasheet, PDF (1/7 Pages) List of Unclassifed Manufacturers – DTV IF AGC AMPLIFIER

ISG510067
PRELIMINARY DATA SHEET
DTV IF AGC AMPLIFIER
FEATURES
• 3.3 V SINGLE SUPPLY OPERATION
• LOW POWER CONSUMPTION (330 mW)
• LOW DISTORTION
• 85 dB TOTAL VOLTAGE GAIN
• 54 dB TOTAL GAIN CONTROL RANGE
• 25-100 MHZ OPERATION
DESCRIPTION
The ISG510067 consists of an input AGC amplifier and a
video/AGC amplifier. The amplifiers are designed to interface
directly with standard saw filters. The AGC is delayed between
the two blocks for optimal NF and IM3 performance across the
full AGC range. The final stage is capable of providing 2 VPP
into a 500 Ω load. There are two package options MLP28 and
TSSOP 20.
APPLICATIONS
• Digital Terrestrial Tuners • Digital TV Sets.
FUNCTIONAL DIAGRAM
VDD
SAW FILTER
28,18 27,17 26,19 25, X 24,15 23,14 22,13
1, X
2, 20
NC*
3, 1
NC*
4, X
5, X
6, 2
VDD
7, 6
RF
AMP
VIDEO
AMP
21,16
20,11
OUTPUT
19,12 MATCHING
VID OUT
18,10
17, 9
VDD
16, 8
15, 7
8, 3 9, 4 10, X 11, 5 12, X 13, X 14, X
RF
AGC
ELECTRICAL CHARACTERISTICS (TA = 25°C, VDD = 3.3 V, unless otherwise specified)
SYMBOLS PARAMETERS AND CONDITIONS
UNITS
MIN
RF Performance
RFIN RF Input Frequency Range
MHz
GMAX Maximum Gain*
dB
VAGC AGC Voltage
V
0
AGC AGC Dynamic Range VAGC = 0 to 3 V
dB
IM3
Third Order Intermodulation, 1 VPP Differential Output, 1K ohm load
dBc
Third Order Intermodulation, 2 VPP Differential Output, 1K ohm load
dBc
IFOUT IF Output Level, Differential Output, 1K ohm load
VPP
NF
Noise Figure, VAGC = 3 V
dB
GINPUT Input Amp Gain, VAGC = 3 V
dB
GVIDEO Video Amp Gain, VAGC = 3 V
dB
DC Performance
VDD
Supply Voltage
V
IDD
Supply Current
mA
* Includes saw filter loss.
ABSOLUTE MAXIMUM RATINGS
(TC = 25°C unless otherwise noted)
SYMBOLS
PARAMETERS
UNITS RATINGS
VDD (GND) Supply Voltage (GND)
TOP
Operating Temperature
V
-0.3 to +3.6
°C
-40 to +85
TSTG
Storage Temperature
Junction Temperature
°C -65 to +150
°C
+150
Thermal Resistance (Ø ja) °C/W
34
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
TYP
43.75
85
54
60
48
1
13.5
44
55
3.3
100
MAX
100
3
REV. C
7/21/2004
1