MT1230 [MICROTUNE]
RF SILICON AND SUBSYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS; RF硅和子系统解决方案的宽带通信和汽车电子
| 型号： | MT1230 |
| 厂家： | 
MICROTUNE,INC |
| 描述： | RF SILICON AND SUBSYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS |
| 文件： | 总2页 (文件大小：181K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
M
I
C
R
O
T
U
N E®
RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
The Microtune MT1230 is a
APPLICATIONS
MT1230 IF VARIABLE-GAIN
low-cost intermediate frequency
(IF) variable-gain amplifier IC for
use in digital cable TV (CATV),
cable modem, internet protocol
(IP) telephony, cable-ready TV,
and digital TV systems.
The MT1230 provides both a
high impedance differential input
and a low impedance differential
output, making it immune to
common mode noise and
•
•
•
•
•
Cable modems
AMPLIFIER
PRODUCT BRIEF
Telephony over cable
CATV set-top boxes
Cable-ready TVs
Digital TVs
The MT1230 IF variable-gain
FEATURES
•
amplifier offers low distortion, low
noise, and low power consumption.
Analog dB linear gain control
characteristic
•
Temperature-compensated
gain control
•
•
57 dB maximum gain
Supply-independent voltage
gain
minimizing shielding
requirements. Operating from a
single +5V supply, the two-stage
amplifier design typically draws
20 mA. The temperature-
compensated analog control
voltage produces a dB linear gain
characteristic throughout the
entire control voltage range.
The MT1230 is available in an
8-pin TSSOP package.
•
•
•
•
•
•
95 MHz bandwidth
Low distortion
Low noise
Low power consumption
Single +5V supply
8-pin TSSOP package
MT1230 IF Variable-Gain Amplifier
MT1230 IF VARIABLE GAIN AMPLIFIER
PRODUCT BRIEF
TERMINAL CONNECTIONS
PIN
FUNCTION/SYMBOL
DESCRIPTION
1
2
3
4
5
6
7
8
VCC
IN1
IN2
VAGC
GND
OUT2
OUT1
GND
Supply
OUT2
OUT1
6
7
2
3
IN1
IN2
Amplifier input 1
Amplifier input 2
Gain control
Ground
Amplifier output 2
Amplifier output 1
Ground
dB Linear and
Temperature Compensation
AC ELECTRICAL CHARACTERISTICS
PARAMETER
MIN
TYP
MAX
UNIT
Voltage gain, minimum, VAGC = 0.7
Voltage gain, maximum, VAGC = 3.3
AGC range
Gain variation, over 6 MHz
Frequency range
30
dB
dB
dB
dB
54
24
57
42
0.5
MT1230 Typical Application
<1 dB rolloff
<3 dB rolloff
60
95
MHz
MHz
Noise figure
A
= 54 dB
9.5
16
dB
dB
V
MT1230
A
= 30 dB
V
SAW
Filter
Output IM3, gain adjusted for
= 51 dBmV, A > 30 dB
RF Input
Tuner
Demodulator
IF
IF
IF
-53
dBc
V
OUT
V
Output IP3, gain adjusted for
= 51 dBmV, A > 30 dB
80
dBmV
V
OUT
V
1 dB compression input
Input impedance
Output impedance
34
2.2⏐⏐1.7
34
dBmV
kΩ⏐⏐pF
Ω
AGC
MT1230 Block Diagram
DC ELECTRICAL CHARACTERISITICS
PARAMETER
MIN
TYP
MAX
UNIT
Supply voltage
Supply current
Gain control voltage
VAGC input impedance
4.5
5.5
24
3.3
V
mA
V
20
60
Top View
0.7
kΩ
8
7
6
GND
VCC
IN1
1
ABSOLUTE MAXIMUM RATINGS
PARAMETER
MIN
MAX
UNIT
OUT1
OUT2
2
VCC
-0.7
-0.7
5.5
VCC + 0.7
+100
V
Input voltage levels (all inputs), VCM
Junction temperature
V
IN2
3
4
°C
°C
°C
Storage temperature range
Lead temperature (soldering, 10 seconds)
-55
+150
VAGC
5 GND
+245
MT1230 Pin Configuration
Microtune, Inc., 2201 Tenth Street, Plano, TX 75074, USA
Tel: +1-972-673-1600, Fax: +1-972-673-1602, E-mail: sales@microtune.com, Web site: www.microtune.com
For a detailed list of design centers, sales offices, and sales representatives, visit our Web site at www.microtune.com.
The information in this document is believed to be accurate and reliable. Microtune assumes no responsibility for any consequences arising from the use of this information, nor from any infringement of patents or the
rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or other rights of Microtune. The information in this publication replaces and supersedes all
information previously supplied, and is subject to change without notice. The customer is responsible for assuring that proper design and operating safeguards are observed to minimize inherent and procedural hazards.
Microtune assumes no responsibility for applications assistance or customer product design.
The devices described in this document are not authorized for use in medical, life-support equipment, or any other application involving a potential risk of severe property or environmental damage, personal injury, or
death without prior express written approval of Microtune. Any such use is understood to be entirely at the user’s risk.
Microtune is a registered trademark of Microtune, Inc. MicroTuner, MicroStreamer, VideoCaster, DataCaster, and the Microtune logo are trademarks of Microtune, Inc. All other trademarks belong to their respective
companies.
Microtune’s products are protected by one or more of the following U.S. patents: 5,625,325; 5,648,744; 5,717,730; 5,737,035; 5,739,730; 5,805,988; 5,847,612; 6,100,761; 6,104,242; 6,144,402; 6,163,684;
6,169,569; 6,172,378; 6,177,964; 6,211,745; 6,218,899; 6,268,778; 6,310,387; 6,323,736; 6,355,537; 6,429,502; 6,462,327; 6,535,068; 6,580,313; 6,608,522; 6,631,257; 6,714,776; 6,725,463; 6,744,308 B1;
6,771,124; 6,784,945; 6,804,099; 6,888,406; 6,891,435; 6,906,594; 6,909,886; D,469,742 and additional patents pending or filed.
Entire contents Copyright © 1996 - 2005 Microtune, Inc.
072105
MT1230 PB-00012 — Rev 1.6
AUGUST 2005
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