Document
PRELIMINARY DATA SHEET
ISG510067
DTV IF AGC AMPLIFIER
FEATURES
• 3.3 V SINGLE SUPPLY OPERATION • LOW POWER CONSUMPTION (330 mW)
SAW FILTER
FUNCTIONAL DIAGRAM
• LOW DISTORTION • 85 dB TOTAL VOLTAGE GAIN • 54 dB TOTAL GAIN CONTROL RANGE • 25-100 MHZ 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 VPP into a 500 Ω 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
• Digital Terrestrial Tuners • Digital TV Sets.
RF
AGC
ELECTRICAL CHARACTERISTICS
SYMBOLS PARAMETERS AND CONDITIONS RF Performance RFIN GMAX VAGC AGC IM3 IFOUT NF GINPUT GVIDEO
(TA = 25°C, VDD = 3.3 V, unless otherwise specified) www.DataSheet4U.com UNITS MIN TYP MAX
RF Input Frequency Range Maximum Gain* AGC Voltage AGC Dynamic Range VAGC = 0 to 3 V Third Order Intermodulation, 1 VPP Differential Output, 1K ohm load Third Order Intermodulation, 2 VPP Differential Output, 1K ohm load IF Output Level, Differential Output, 1K ohm load Noise Figure, VAGC = 3 V Input Amp Gain, VAGC = 3 V Video Amp Gain, VAGC = 3 V
MHz dB V dB dBc dBc VPP dB dB dB V mA
43.75 85 0 54 60 48 1 13.5 44 55 3.3 100
100 3
DC Performance VDD Supply Voltage IDD Supply Current * Includes saw filter loss.
ABSOLUTE MAXIMUM RATINGS
(TC = 25°C unless otherwise noted) SYMBOLS VDD (GND) TOP TSTG PARAMETERS Supply Voltage (GND) Operating Temperature Storage Temperature Junction Temperature Thermal Resistance (Ø ja) UNITS V °C °C °C °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
1
ISG510067 PIN ASSIGNMENTS
GND VIDEO AMP OUT 2 AMP OUT 1 VIDEO IN 2 VIDEO IN 1 GND GND
GC 1 VDD RF
1 2 3 4 5 6 7 8 9 10
20 19 18
GC 2 GND AMP OUT 2 AMP OUT 1 GND VID IN 2 VID IN 1 GND VID VID OUT 1 VID OUT 2
28
27
26
25
24
23
22
GND
1
21
GND
RF IN 1 RF IN 2 V AGC
GC 2
2
20
VID OUT 2
GC 1
3
ISG 510067
( MLP-28 )
ISG 510067
(TSSOP-20)
17 16 15 14 13 12 11
19
VID OUT 1
GND
4
18
VDD VID
GND RF
GND 5 17 VDD
GND
VDD RF GND RF 6 16 VDD
VDD
7 15 GND
8
9
10
11
12
13
8
1
VDD VDD VID
V AGC
GND
GND
RF IN 1
PIN FUNCTIONS
TSSOP-20 MLP-28 PIN NO. 7,16,19 PIN NO. 1, 4, 5, 10, 12,13,14, 15 21, 25, 26 2 3 6 7 8 9 11 16 17 18 19 PIN NAME GND GC1 GC2 VDD RF GND RF RF IN1 RF IN2 AGC VDD VDD VDD VID VID OUT1 DESCRIPTION Ground pins. Connect to the ground plane with shortest possible length to minimize inductance. Optional Gain control Optional Gain control INPUT A.