參數(shù)資料
型號(hào)： MAX3503
廠商： Maxim Integrated Products, Inc.
英文描述： Upstream CATV Amplifier
中文描述： CATV上行放大器
文件頁(yè)數(shù)： 7/13頁(yè)
文件大?。?/td> 398K
代理商： MAX3503
M
Upstream CATV Amplifier
_______________________________________________________________________________________
7
Typical Operating Characteristics (continued)
(
Typical Application Circuit
, V
CC
= 3.3V, V
IN
= 34dBmV, TXEN =
SHDN
= high, f
IN
= 20MHz, Z
LOAD
= 75
, T
A
= +25
°
C, unless oth-
erwise noted.)
Pin Description
PIN
NAME
DESCRIPTION
1
V
CC
Programmable-Gain Amplifier (PGA) 3.3V Supply. Bypass to GND with a 0.1μF decoupling
capacitor as close to the part as possible.
2
IN+
Positive PGA Input. Along with IN-, this port forms a high-impedance differential input to the PGA.
Driving this port differentially increases the rejection of second-order distortion at low output levels.
3
GND
PGA RF Ground. As with all ground connections, maintain the shortest possible (low-inductance)
length to the ground plane.
4
5
6
7
8
9
10
IN-
GND
SDA
SCLK
CS
TXEN
SHDN
N.C.
Negative PGA Input. When not used, this port must be AC-coupled to ground. See IN+.
Ground
Serial-Interface Data. TTL-compatible input. See
Serial Interface
section.
Serial-Interface Clock. TTL-compatible input. See
Serial Interface
section.
Serial-Interface Enable. TTL-compatible input. See
Serial Interface
section.
Transmit Enable. Drive TXEN high to place the device in transmit-enable mode.
Shutdown. When
SHDN
is set low, all functions (including the serial interface) are disabled.
No Connection
11,13,17
–
20
12
OUT-
Negative Output. Along with OUT+, this port forms a 75
impedance output. This port is matched
to a 75
load using a 1:1 transformer.
Positive Output. See OUT-.
14
OUT+
15
V
CC
Output Amplifier Bias, 3.3V Supply. Bypass to GND with a 0.1μF decoupling capacitor as close to
the part as possible.
16
CEXT
RF Output Bypass. Bypass to GND with a 0.1μF capacitor.
Exposed
Paddle
GND
Ground
-70
-80
-50
-60
-30
-40
-20
0
-10
10
100kHz/div
OUTPUT SPECTRUM
M
(
V
OUT
= 61dBmV
α
= 0.25
160ksps
-70
-80
-50
-60
-30
-40
-20
0
-10
10
6MHz/div
OUTPUT SPECTRUM
M
(
V
OUT
= 61dBmV
α
= 0.25
1280ksps
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參數(shù)描述
MAX3503EGP 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX3503EGP-T 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX3503EVKIT 功能描述:交換機(jī) IC 開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:USB Power Switches 工具用于評(píng)估:MAX4984E 工作電源電壓:2.8 V to 5.5 V
MAX3505EGP 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel
MAX3505EGP+ 功能描述:射頻放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel
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