ETC ISG510065

PRELIMINARY DATA SHEET
ISG510065
CATV OUT-OF-BAND TUNER
FEATURES
FUNCTIONAL DIAGRAM
EPCOS X6959M
SAW FILTER
• 3.3 V SINGLE SUPPLY OPERATION
• LOW POWER CONSUMPTION (400 mW)
VDD
• LOW DISTORTION
28,18
27,17 26,19
25, X
24,15
23,14 22,13
• 82 dB TOTAL CONVERSION GAIN
• 55 dB TOTAL GAIN CONTROL RANGE
1, X
• LOW LO-RF LEAKAGE
2, 20
DESCRIPTION
20,11
MIXER
NC*
The ISG510065 is a downconverter designed to be used as
an Out-of-Band Tuner for use in CATV set-top box and Digital
Cable Ready TV applications. The ISG510065 consists of an
input AGC amplifier, mixer, and a video/AGC amplifier. This
device offers optimum performance with low power consumption and low distortion. There are two Package Options MLP
28 and TSSOP 20.
21,16
VIDEO
AMP
3, 1
19,12
4, X
18,10
5, X
17, 9
VID OUT
OUTPUT
MATCHING
NC*
VDD
6, 2
16, 8
RF
AMP
VDD
7, 6
15, 7
LO
LO
BUFFER
APPLICATIONS
8, 3
• Cable Set-Top Boxes • Digital Cable Ready TV Sets.
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
MHz
MHz
dB
V
dB
dB
VPP
dB
dB
dB
dBm
50
80
V
mA
3.2
TYP
MAX
RF Performance
RF Input Frequency Range, High Side L.O.
RFIN
LOIN
LO Input Frequency Range, High Side L.O.
CGMAX
Maximum Conversion Gain*
AGC Voltage
VAGC
AGC
AGC Dynamic Range VAGC = 0 to 3 V
IM3
Third Order Intermodulation, 1 VPP Differential Output, 1K ohm load
IF Output Level, Differential Output, 1K ohm load
IFOUT
NF
Noise Figure, VAGC = 3 V
GINPUT
RF Amp/Mixer Conversion Gain, VAGC = 3 V
GVIDEO
Video Amplifer Gain, VAGC = 3 V
LO-RF
LO leakage at the RF port
LEAKAGE
DC Performance
VDD
Supply Voltage
IDD
Supply Current
* Includes saw filter loss.
150
220
82
0
50
50
3
55
55
1
13
41
55
-95
-85
3.3
117
3.4
135
2
15
ABSOLUTE MAXIMUM RATINGS
(TC = 25°C unless otherwise noted)
UNITS
RATINGS
VDD (GND)
SYMBOLS
Supply Voltage (GND)
PARAMETERS
V
-0.3 to +3.6
TOP
Operating Temperature
°C
-40 to +85
TSTG
Storage Temperature
°C
-65 to +150
°C
+150
Junction Temperature
Thermal Resistance (Ø ja)
°C/W
34
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
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ISG510065
MIX OUT 2
MIX OUT 1
GND
GND
IF IN 2
IF IN 1
GND VIDEO
PIN ASSIGNMENTS
28
27
26
25
24
23
22
MIX IN 1
1
20
MIX IN 2
GND
1
21
GND
VDD RF
2
19
MIX GND
MIX IN 2
2
20
IF OUT 2
RF IN 1
3
18
MIX OUT 2
RF IN 2
4
MIX OUT 1
3
19
IF OUT 1
ISG 510065
17
MIX IN 1
V AGC
5
( TSSOP-20 )
16
GND
GND
4
18
VDD VID
GND RF
6
15
IF IN 1
GND
5
17
VDD LO
LO IN 1
7
14
IF IN 2
VDD RF
6
16
LO IN 2
LO IN 2
8
13
GND VID
7
15
LO IN 1
VDD LO
9
12
IF OUT 1
VDD VID
10
11
IF OUT 2
10
11
12
13
8
V AGC
GND
GND
GND
9
GND
8
RF IN 2
( MLP 28 )
RF IN 1
GND RF
ISG510065
PIN FUNCTIONS
TSSOP
MLP-28
PIN NO. PIN NO. PIN NAME
16 1, 4, 5, 10,
19 12, 13, 14,
GND
21, 25, 26
20
2
MIX IN2
1
3
MIX IN1
2
6
VDD RF
6
7
GND RF
3
8
RF IN1
4
9
RF IN2
5
11
AGC
7
15
LO IN1
8
16
LO IN2
9
17
VDD LO
10
18
VDD VID
12
19
IF OUT1
11
13
15
14
17
18
20
22
23
24
27
28
DESCRIPTION
Ground pins. Connect to the ground plane with shortest possible length to minimize inductance.
No connection.
No connection.
RF AMP Supply, +3.3 V.
RF AMP Ground. See GND.
RF AMP Positive Input. 150 ohms input impedance .
RF AMP Negative Input. 150 ohms input impedance.
Automatic Gain Control, Min Gain @ AGC = 0 V, Max Gain @ AGC = 3.0 V.
LO Buffer Positive Input.
LO Buffer Negative Input.
LO Buffer Supply, +3.3 V.
VIDEO AMP Input Stage Supply, +3.3 V.
VIDEO AMP Negative Output. This pin and IFOUT2 form a 1K ohm ouput impedance. Open Drain
See Application Page 5
IF OUT2 VIDEO AMP Positive Output. See IFOUT1.
GND VID VIDEO AMP Ground. See GND.
IF IN1 VIDEO AMP Negative Input.
IF IN2 VIDEO AMP Positive Input.
MIX OUT1 MIXER Positive Output. Open Drain .See Application Page 5
MIX OUT2 MIXER Negative Output. Open Drain. See Application Page 5 .
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ISG510065
TYPICAL PERFORMANCE CURVES
CONVERSION GAIN vs. RF
IF OUTPUT vs. FREQUENCY
88
10
RF = 100 MHz
AGC = 3.0 V
AGC = 3.0 V
86
0
IF Output (dBm)
ConvGain (dB)
84
82
80
78
76
-10
-20
-30
-40
-50
74
72
70.0
-60
90.0
110.0
130.0
150.0
0
50
100
RF (MHz)
150
200
250
300
350
IF Out (MHz)
CONVERSION GAIN vs. LOW POWER
87
CONVERSION GAIN vs. AGC
90
RF = 100 MHz
AGC = 3.0 V
86
RF = 100 MHz
80
85
70
ConvGain (dB)
NF (dB)
84
83
82
81
80
60
50
40
79
30
78
77
-10.0
-5.0
-0.0
20
0.0
5.0
0.5
1.0
LO Power (dBm)
LO LEAKAGE AT RF vs. FREQUENCY
2.5
3.0
NOISE FIGURE vs. AGC
45
-93
40
-94
RF = 100 MHz
P Out = 0 dBm
35
-95
Noise Figure (dB)
LO Leakage (dBm)
2.0
AGC (V)
-92
-96
-97
-98
-99
30
25
20
15
10
-100
AGC = 3.0 V, LO = 2.0 dBm
AGC = 0V, LO = 2.0 dBm
-101
5
-102
100
1.5
120
140
160
180
0
0.0
200
0.5
1.0
1.5
2.0
2.5
3.0
AGC (V)
Frequency (MHz)
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ISG510065
TYPICAL PERFORMANCE CURVES (CON'T)
IM3 vs. AGC
INPUT VOLTAGE vs. CURRENT
160
75
140
70
120
100
ICC (mA)
IM3 (dB)
65
60
80
60
55
40
50
20
RF = 100 MHz
0
0.00
45
0
0.5
1
1.5
2
2.5
3
1.00
2.00
3.00
4.00
VCC (V)
AGC(V)
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ISG510065
TYPICAL APPLICATION CIRCUIT
EPCOS X6959M
SAW FILTER
270nH
PIN Numbers
MLP-28 , TSSOP-20
8.2pF
1uH
27pF
VDD
1, X
2, 20
NC*
3, 1
NC*
4, X
IF IN 1
23,14 22,13
GND VID
24,15
IF IN 2
25, X
GND
MIX OUT 2
0 OHM
27,17 26,19
MIX OUT 1
28,18
0.1uF
GND
27pF
1uH
GND
VIDEO
AMP
MIXER
MIX IN 2
GND
IF OUT 2
IF OUT 1
MIX IN 1
VDD VIDEO
GND
21,16
20,11
200 OHM
4:1
19,12
VDD
18,10
0.1uF
0.01uF
5, X
VDD LO
GND
SPECTRUM
ANALYZER
50 OHM
17, 9
0.01uF
6, 2
VDD
0.01uF
7, 6
RF
AMP
VDD RF
LO IN 2
LOCAL
OSCILLATOR
1000pF
GND RF
LO IN 1
LO
BUFFER
RF
SOURCE
16, 8
15, 7
RF IN 1
RF IN 2
GND
V AGC
GND
GND
GND
1000pF
8, 3
9, 4
10, X
11, 5
12, X
13, X
14, X
1000pF
AGC
1000pF
10K OHM
0.01uF
RF Amplifier
This amplifier provides a maximum gain of 29 dB. The gain is
programmed by applying a DC voltage (from 0 to 3 V) to the
AGC pin, providing 27 dB of range.
Video Amplifier
This amplifier provides a maximum gain of 55 dB. The gain is
programmed by applying a DC voltage (from 0 to 3 V) to the
AGC pin, providing 28 dB of range. The outputs of the video
amp are both open drain and require pull-up inductors to VDD.
Downconversion Mixer
This double balanced mixer has 12 dB of conversion gain. The
outputs of the mixer are both open drain and require pull-up
inductors to VDD.
Note:
1. The RF amplifier and video amplifier are controlled by a single AGC
so the overall dynamic range is the sum of the RF amplifier range
and the video amplifier range.
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ISG510065
PACKAGE INFORMATION MLP-28 (Units in mm)
1.
2.
3.
4.
5.
6.
7.
Dimensions and tolerances conform to ASME Y14.5-1994.
All dimensions are in millimeters. All angles are in degrees.
N is the total number of terminals.
The terminal numbering convention shall conform to JESD 95-1, SPP-012. The terminal #1 identifier may be either a mold or
marked feature.
Dimension b applies to metallized terminal and is measured between 0.25 and 0.3 mm from terminal tip.
ND and NE refer to the number of terminals on each D and E side respectively.
Co-planarity applies to the exposed heatsink slug as well as the terminals.
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ISG510065
PACKAGE INFORMATION MLP-28 (CON'T)
COMMON DIMENSIONS
VARIATIONS
SYMBOLS
MIN
NOM
MAX
SYMBOLS
MIN
NOM
MAX
A1
0
0.02
0.05
A
0.80
0.90
1.00
b
0.18
0.23
0.30
A3
r
0.20 REF
D
b/2
D2
TOLERANCES OF FORM AND POSITION
aaa
0.25
bbb
0.1
ccc
0.1
BODY SIZE
(MM)(MM)
PITCH
COUNT
LEAD
5.00x5.00
0.50
28
3.00
3.00
AA
0.435
BB
0.435
CC
0.18
DD
3.25
3.15
3.25
0.50 BSC
L
0.45
N
28
ND
3.15
5.00 BSC
e
SUMMARY TABLE & PIN #1 DIMENSIONS
5
5.00 BSC
E
E2
NOTE
0.55
0.65
3
7
6
NE
7
6
NOTE
1,2,4
0.18
LAND PATTERN FOR TERMINALS AND THERMAL PAD
ISG Broadband, Inc. • 1567 Centre Pointe Drive • Milpitas, CA 95035 • (408) 957-8000 • FAX (408) 957-8008 • www.isgbroadband.com
DATA SUBJECT TO CHANGE WITHOUT NOTICE
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ISG510065
PACKAGE INFORMATION TSSOP-20
(CON'T)
LAND PATTERN FOR TERMINALS AND THERMAL PAD TSSOP-20
(CON'T)
ISG Broadband, Inc. • 1567 Centre Pointe Drive • Milpitas, CA 95035 • (408) 957-8000 • FAX (408) 957-8008 • www.isgbroadband.com
DATA SUBJECT TO CHANGE WITHOUT NOTICE
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