PRELIMINARY DATA SHEET
ISG510067
DTV IF AGC AMPLIFIER
FEATURES
鈥?3.3 V SINGLE SUPPLY OPERATION
鈥?LOW POWER CONSUMPTION (330 mW)
SAW FILTER
FUNCTIONAL DIAGRAM
鈥?LOW DISTORTION
鈥?85 dB TOTAL VOLTAGE GAIN
鈥?54 dB TOTAL GAIN CONTROL RANGE
鈥?25-100 MH
Z
OPERATION
1, X
VDD
28,18
27,17
26,19
25, X
24,15
23,14
22,13
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 V
PP
into a 500
鈩?/div>
load. There are two package options MLP28 and
TSSOP 20.
VIDEO
AMP
21,16
2, 20
NC*
3, 1
NC*
4, X
20,11
VID OUT
19,12
OUTPUT
MATCHING
18,10
VDD
5, X
17, 9
6, 2
VDD
7, 6
RF
AMP
16, 8
15, 7
8, 3
9, 4
10, X
11, 5
12, X
13, X
14, X
APPLICATIONS
鈥?Digital Terrestrial Tuners 鈥?Digital TV Sets.
RF
AGC
ELECTRICAL CHARACTERISTICS
SYMBOLS PARAMETERS AND CONDITIONS
RF Performance
RF
IN
G
MAX
V
AGC
AGC
IM3
IF
OUT
NF
G
INPUT
G
VIDEO
(T
A
= 25擄C, V
DD
= 3.3 V, unless otherwise specified)
UNITS
MIN
TYP
MAX
RF Input Frequency Range
Maximum Gain*
AGC Voltage
AGC Dynamic Range V
AGC
= 0 to 3 V
Third Order Intermodulation, 1 V
PP
Differential Output, 1K ohm load
Third Order Intermodulation, 2 V
PP
Differential Output, 1K ohm load
IF Output Level, Differential Output, 1K ohm load
Noise Figure, V
AGC
= 3 V
Input Amp Gain, V
AGC
= 3 V
Video Amp Gain, V
AGC
= 3 V
MHz
dB
V
dB
dBc
dBc
V
PP
dB
dB
dB
V
mA
43.75
85
0
54
60
48
1
13.5
44
55
3.3
100
100
3
DC Performance
V
DD
Supply Voltage
I
DD
Supply Current
*
Includes saw filter loss.
ABSOLUTE MAXIMUM RATINGS
(T
C
= 25擄C unless otherwise noted)
SYMBOLS
V
DD
(GND)
T
OP
T
STG
PARAMETERS
Supply Voltage (GND)
Operating Temperature
Storage Temperature
Junction Temperature
Thermal Resistance (脴 ja)
UNITS
V
擄C
擄C
擄C
擄C/W
RATINGS
-0.3 to +3.6
-40 to +85
-65 to +150
+150
34
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
REV. C
7/21/2004
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