CXA3068 Sony Corporation, CXA3068 Datasheet

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CXA3068

Manufacturer Part Number
CXA3068
Description
L-band Down Converter for Satellite Tuner
Manufacturer
Sony Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CXA3068N
Manufacturer:
Welwyn (TT electronics)
Quantity:
12 000
Block Diagram and Pin Configuration
Description
the L-band (930 to 2150 MHz) signal for the satellite
broadcasting receiver. It has a double-balanced
mixer, local oscillator circuit and IF amplifier on chip.
Features
• Balance-type Colpitts oscillator circuit provides a
• Small leak of the local oscillation signal due to the
• Oscillation frequency drift is small, caused by the
• Local oscillator output circuit for PLL.
• Single 5 V power supply operation.
• Low current consumption.
• 16-pin SSOP package contributes to reduction in
Applications
• Satellite broadcasting tuners for BS, CS, DSS and
Structure
The CXA3068N is a monolithic IC to down-convert
stable and wide range oscillation.
Oscillation frequency : 2.63 GHz
double-balanced mixer.
change of impedance at the pre-stage of RF input.
set size.
DVB. (Frequency conversion to the second IF)
Bipolar silicon monolithic IC
L-band Down Converter for Satellite Tuner
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
16
1
I
CC
15
2
=53 mA (typ.)
IF AMP
14
3
13
4
—1—
OSC
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
• Storage temperature
• Allowable power dissipation
Operating Conditions
• Supply voltage
• Ambient temperature
12
5
MIX
11
6
CXA3068N
16 pin SSOP (Plastic)
10
7
BUFF
9
8
(When mounted on board)
Topr
Tstg –55 to +150 °C
V
V
P
CC
CC
D
–0.3 to +5.5
4.75 to 5.3
–20 to 75
625
E95Z07-TE
mW
°C
V
V

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CXA3068 Summary of contents

Page 1

... L-band Down Converter for Satellite Tuner Description The CXA3068N is a monolithic IC to down-convert the L-band (930 to 2150 MHz) signal for the satellite broadcasting receiver. It has a double-balanced mixer, local oscillator circuit and IF amplifier on chip. Features • Balance-type Colpitts oscillator circuit provides a stable and wide range oscillation. ...

Page 2

... OSC OUT1 3.5 Equivalent circuit VCC2 VCC1 —2— CXA3068N Description IF output. IF block power supply. IF block GND. IF block GND. RF input. Normally, a decoupling capacitor is connected at Pin 5 to GND and Pin 6 is used for input. RF block GND. Local oscillation output. ...

Page 3

... Pin Typical pin Symbol No. voltage (V) 10 GND1 0 11 OSC B2 2 — — 14 OSC B1 2.4 15 GND1 0 16 VCC1 5.0 Equivalent circuit —3— CXA3068N Description RF block GND. Oscillator. RF block GND. RF block power supply. ...

Page 4

... MHz + 960 MHz fout = 470 MHz + 480 MHz S/I of 460 MHz and 480 MHz CN1 f =1430 MHz, offset 10 kHz OSC CN2 f =1430 MHz, offset 100 kHz OSC f = 480 MHz rπ 950 MHz Cπ —4— CXA3068N Min. Typ. Max. Unit 31.0 53.0 75 ...

Page 5

... CXA3068N ...

Page 6

... The mixer output signal is amplified by the IF amplifier and output to Pin 1. The IF output is emitter- follower output and output impedance is approximately 50 Ω (480 MHz). 4) PLL oscillation signal output circuit The output circuit is built in to drive the PLL for tuning. This is emitter-follower output and output impedance is approximately 50 Ω. —6— CXA3068N ...

Page 7

... Noise figure vs. Reception frequency (untuned input, in DSB 0.8 1.0 1.2 1.4 1.6 Reception frequency [GHz] Conversion gain vs. Reception frequency (untuned input 5.3 0.8 Local oscillation output level vs. Local oscillation frequency + 480MHz IF 0 –5 –10 1.8 2.0 2.2 1.4 —7— 480MHz IF 1.0 1.2 1.4 1.6 1.8 2.0 Reception frequency [GHz] 1.6 1.8 2.0 2.2 2.4 2.6 Local oscillation frequency [GHz] CXA3068N 2.2 2.8 ...

Page 8

... RF pin oscillation frequency leak vs. Local oscillation frequency –20 –30 –40 –50 –60 2.4 2.6 2.8 1.4 Input/output characteristics (untuned input) –50 –40 –30 –20 – input level [dBm] (935MHz, 940MHz) —8— CXA3068N 1.6 1.8 2.0 2.2 2.4 2.6 Local oscillation frequency [GHz] = Fundamental-frequency (480MHz) = Third-harmonics (470MHz) 2.8 ...

Page 9

... Input Impedance j25 j10 0 –j10 –j25 1450MHz 2150MHz j50 j100 50 –j100 –j50 950MHz —9— j150 j250 –j250 –j150 S11 CXA3068N 8 ...

Page 10

... Output Impedance (local oscillation output) j25 2630MHz j10 0 –j10 –j25 400MHz j50 j100 j150 50 –j150 –j100 –j50 j50 j100 j150 50 –j150 –j100 –j50 1430MHZ —10— CXA3068N j250 –j250 S11 j250 –j250 S11 ...

Page 11

... SONY CODE EIAJ CODE JEDEC CODE 16PIN SSOP (PLASTIC 0.65 ± 0.12 0.15 – 0.02 0.1 ± 0.1 0° to 10° DETAIL A PACKAGE STRUCTURE PACKAGE MATERIAL SSOP-16P-L01 LEAD TREATMENT SSOP016-P-0044 LEAD MATERIAL PACKAGE WEIGHT —11— + 0.2 1.25 – 0.1 0.1 + 0.05 EPOXY RESIN SOLDER / PALLADIUM PLATING COPPER / 42 ALLOY 0.1g CXA3068N ...

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