概述
数据手册S510067 概述
DTV IF AGC AMPLIFIER DTV IF AGC放大器
S510067 数据手册
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PDF下载S510067
DTV IF AGC AMPLIFIER
FEATURES
SINGLE3ꢀ3V SUPPLY OPERATION
LowDISTORTION:-55dBC@1VPP
14-68dBTOTALVOLTAGE GAIN
54dBTOTAL GAIN CONTROL RANGE
10-100MHZ OPERATION
FUNCTIONALDIAGRAM
DESCRIPTION
The S510067 consists of an input Linear AGC amplifier and a
video/AGC amplifierꢀ The amplifiers are designed to interface
directly with saw filters and A/D converters The AGC is delayed
between the two blocks for optimal NF and IM3 performance
across the full AGC rangeꢀ The final stage is capable of
providing 2 VPP into a 500Ω loadꢀ The part is offered in the
QFN28 & 20 TSSOP package and is RoHS compliantꢀ
APPLICATIONS
Digital Terrestrial Tuners Digital TV Setsꢀ
Digital Radios Digital Set top boxesꢀ
ELECTRICAL CHARACTERISTICS (TA = 25°C, VDD = 3ꢀ3 V, unless otherwise specified)
SYMBOLS PARAMETERSANDCONDITIONS
RF Performance
UNITS
MIN
TYP
MAX
RFIN
RF Input Frequency Range
MHz
dB
10
43ꢀ75
0ꢀ5
100
25
RF Flatness Gain flaness
Rfin
GMAX
VAGC
AGC
IM3
RF input power range
MaximumGain*
dBmV
dB
22
72
AGC Voltage
V
0
50
1
3
AGC Dynamic Range VAGC = 0 to 3 V
Third Order Intermodulation, 1 VPP Differential Output, 1K ohm load
dB
dBc
54
55
IFOUT
Gain
NF
IF Output Level, Differential Output, 1K ohm load
Change vs NF increase ratio
VPP
dB
1ꢀ2
2
2/1
Noise Figure, VAGC = 3 V
dB
13ꢀ5
30
NF
Noise Figure, VAGC = 0 V
dB
32
GINPUT
GVIDEO
Input Video Amp Gain, VAGC = 3 V
Video Amp Gain, VAGC = 3 V
dB
39
dB
47
DC Performance
VDD
IDD
Supply Voltage
Supply Current
V
3ꢀ3
mA
100
125
*
Includes saw filter lossꢀ
ABSOLUTE MAXIMUM RATINGS
(TC = 25°C unless otherwise noted)
SYMBOLS PARAMETERS
VDD (GND) Supply Voltage (GND)
Note:
UNITS
V
RATINGS
-0ꢀ3 to +3ꢀ6
-40 to +85
-65 to +150
+150
1ꢀ Operation in excess of any one of these parameters may
result in permanent damageꢀ
TOP
Operating Temperature
Storage Temperature
Junction Temperature
°C
TSTG
°C
°C
Thermal Resistance (Ø ja) °C/W
34
PerformancetestsandratingsforSirenzaMicrodevicesproductswereperformedinternallybySirenzaandmeasuredusingspecificcomputersystemsand/orcomponentsandreflecttheapproximate
performanceoftheproductsasmeasuredbythosetests*Anydifferenceincircuitimplementation,testsoftware,ortestequipmentmayaffectactualperformance*Theinformationprovidedhereinis
believedtobereliableatpresstimeandSirenzaMicrodevicesassumesnoresponsibilityfortheuseofthisinformation*Allsuchuseshallbeentirelyattheusersownrisk*Pricesandspecificationsfor
SirenzaMicrodevicesproductsaresubjecttochangewithoutnotice*BuyersshouldconsultSirenzaMicrodevicesstandardtermsandconditionsofsaleforSirenzaslimitedwarrantywithregardtoits
products*Nopatentrightsorlicensestoanyofthecircuitsdescribedhereinareimpliedorgrantedtoanythirdparty*SirenzaMicrodevicesdoesnotauthorizeorwarrantanyproductforuseinlife-
supportdevicesand/orsystems*
303 Sꢀ Technology Court, Broomfield, CO 80021
303-327-3030
wwwꢀsirenzaꢀcom
EDS-104217 REVꢀG
11/7/2005
1
S510067
PIN ASSIGNMENTS
GC 1
VDD RF
RF IN 1
RF IN 2
V AGC
GND RF
GND
1
2
20
19
18
17
16
GC 2
GND
28
27
26
25
24
23
22
3
AMP OUT 2
AMP OUT 1
GND
1
2
3
4
5
6
7
21
20
19
18
17
16
15
GND
GC 2
GND
4
VID OUT 2
VID OUT 1
VDD VID
VDD
S510065*-20Z
(TSSOP-20)
5
GC 1
S510065*-55Z
( QFN-28 )
6
15 VID IN 2
14 VID IN 1
GND
GND
7
VDD RF
GND RF
VDD
VDD
8
13
12
11
GND VID
GND
VDD
9
VID OUT 1
VID OUT 2
VDD VID
10
8
9
10
11
12
13
14
*The tape and reels will be marked as S510067ꢀ The part is tested to the specification in this documentꢀ
PIN FUNCTIONS
TSSOP-20 QFN-28
PIN NOꢀ
7,16,19 1, 4, 5, 10,
12,13,14, 15 GND
PIN NOꢀ
PIN NAME
DESCRIPTION
Ground pinsꢀ Connect to the ground plane with shortest possible length to minimize inductanceꢀ
21, 25, 26
20
1
2
3
NC
NC
Float do not connectꢀ
Float do not connectꢀ
2
6
VDD RF
INPUT AMP Supply, +3ꢀ3 Vꢀ
6
7
GND RFINPUT AMPGroundꢀSeeGNDꢀ
3
4
5
8
9
10
12
8
9
RF IN1
RF IN2
AGC
VDD
VDD
RF AMP Positive Inputꢀ Input impedance, 1K ohms single endedꢀ SEE APPLICATION PAGE 4ꢀ
RFAMPNegativeInputꢀSEEAPPLICATIONPAGE4ꢀ
Automatic Gain Control, Min Gain @ AGC = 0 V, Max Gain @ AGC = 3ꢀ0 Vꢀ
Supply Voltage, +3ꢀ3 Vꢀ
Supply Voltage, +3ꢀ3 Vꢀ
VIDEO AMP Input Stage Supply, +3ꢀ3 Vꢀ
11
16
17
18
19
VDD VID
VID OUT1
VIDEO AMP Negative Outputꢀ This pin and VID OUT2 form a 1K ohm output impedanceꢀ
Open Drain - See Application Page 4ꢀ
11
13
14
15
17
18
20
22
23
24
27
28
VID OUT2
GND VID
VID IN1 VIDEOAMPNegativeInputꢀ
VID IN2 VIDEOAMP PositiveInputꢀ
AMP OUT1
AMP OUT2
VIDEO AMP Positive Outputꢀ See VID OUT1ꢀ
VIDEO AMP Groundꢀ See GNDꢀ
INPUT AMP Positive Outputꢀ Open Drain ꢀ See Application Page 4ꢀ
INPUT AMP Negative Outputꢀ Open Drain ꢀSee Application Page 4ꢀ
303 Sꢀ Technology Court, Broomfield, CO 80021
303-327-3030
wwwꢀsirenzaꢀcom
EDS-104217 REVꢀG
11/7/2005
2
S510067
TYPICAL PERFORMANCE CURVES
GAIN vsꢀ AGC
OUTPUTSPECTRUM
80
70
60
50
40
30
20
10
0
10
Z
L = 1 K Ω
0
-10
-20
-30
-40
-50
-60
-70
0
50
100
150
200
250
300
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (MHz)
AGC (V)
OUTPUTFLATNESS
IM3 vsꢀ AGC
10
5
70
60
50
40
30
20
10
0
ZL=1K
IM3 1Vp-p
IM3 2Vp-p
0
-5
-10
-15
-20
-25
-30
0
0.5
1
1.5
2
2.5
3
40
41
42
43
44
45
46
47
48
Frequency (MHz)
AGC (V)
NOISEFIGUREvsꢀAGC
IDD vsꢀ VDD
30.0
25.0
20.0
15.0
10.0
5.0
0.16
ZL=1K
0.14
0.12
0.1
0.08
0.06
0.04
RF=110MHz
0.50
0.02
0
0.0
0.00
1.00
1.50
2.00
2.50
3.00
0
0.5
1
1.5
2
2.5
3
3.5
4
VDD (V)
AGC (V)
303 Sꢀ Technology Court, Broomfield, CO 80021
303-327-3030
wwwꢀsirenzaꢀcom
3
EDS-104217 REVꢀG
11/7/2005
S510067
TYPICAL APPLICATION CIRCUIT
InputAmplifier
VideoAmplifier
This amplifier provides a maximum gain of 39 dBꢀ The gain
iscontrolledbyapplyingaDCvoltage(from0to3V)totheAGC
pin, providing 27 dB of rangeꢀ The output stage current can
be set between 10 mA (R = 20) and 30 mA (R = 0) by
connecting an external resistor from pin 1 to groundꢀ
This amplifier provides a maximum gain of 47 dBꢀ The gain
iscontrolledbyapplyingaDCvoltage(from0to3V)totheAGC
pin, providing 27 dB of rangeꢀ The outputs of the video amp
are both open drain and require pull-up inductors to VDDꢀ Up
to 2 VPP can be delivered into a 500 Ω loadꢀ
The input amplifier and video amplifier are controlled by a
single AGC so the overall dynamic range is the sum of the
input amplifier range and the video amplifier rangeꢀ
303 Sꢀ Technology Court, Broomfield, CO 80021
303-327-3030
wwwꢀsirenzaꢀcom
EDS-104217 REVꢀG
11/7/2005
4
S510067
PACKAGE INFORMATION QFN-28(Units in mm)
1ꢀ Dimensions and tolerances conform to ASME Y14ꢀ5-1994ꢀ
2ꢀ All dimensions are in millimetersꢀ All angles are in degreesꢀ
3ꢀ The exposed thermal pad is also an electrical ground ꢀ
LAND PATTERN FOR TERMINALS AND THERMAL/GROUND PAD
303 Sꢀ Technology Court, Broomfield, CO 80021
303-327-3030
wwwꢀsirenzaꢀcom
5
EDS-104217 REVꢀG
11/7/2005
S510067
PACKAGE INFORMATION TSSOP-20 (CON'T)
LAND PATTERN FOR TSSOP-20 (CON'T)
303 Sꢀ Technology Court, Broomfield, CO 80021
EDS3-100342-1372R7E-V3ꢀ0H30
wwwꢀsirenzaꢀcom
EDS-104217 REVꢀG
11/7/2005
6
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