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MAX3509

Features: Ultra-Low Power-Up/Down Transients, 25mV (typ) at 66dBmV OutputSingle-Supply OperationOutput Level Ranges from <12dBmV to 67dBmV (QPSK)Gain Programmable in 1dB StepsLow Transmit Output Noise Floor: -41dBmV (160kHz BW)Low Transmit-Disable Output Noise: -70dBmVShutdown ModeApplicationTe...

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SeekIC No. : 004410068 Detail

MAX3509: Features: Ultra-Low Power-Up/Down Transients, 25mV (typ) at 66dBmV OutputSingle-Supply OperationOutput Level Ranges from <12dBmV to 67dBmV (QPSK)Gain Programmable in 1dB StepsLow Transmit Output ...

MAX3509 Data Sheet

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Part Number:
MAX3509
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

Ultra-Low Power-Up/Down Transients, 25mV (typ) at 66dBmV Output
 Single-Supply Operation
 Output Level Ranges from <12dBmV to 67dBmV (QPSK)
 Gain Programmable in 1dB Steps
 Low Transmit Output Noise Floor: -41dBmV (160kHz BW)
 Low Transmit-Disable Output Noise: -70dBmV
 Shutdown Mode


Application

Telephony over Cable               CATV Status Monitor
OPENCATV Set-Top Box             CATV Infrastructure
Cable Modems


Pinout

Connection Diagram


Specifications

VCC1, VCC2 to GND, GND1 ...............................-0.3V to +10.0V
SCLK, SDA, CS, TXEN, SHDN to GND
and GND1 .........................................................-0.3V to +5.5V
Continuous Input Voltage (IN+, IN-) ..............................2Vp-p
Continuous Current (OUT+, OUT-) ..................................80mA
Continuous Power Dissipation (TA = +70°C)
20-Pin TSSOP-EP (derate at 27mW/°C above
+70°C).......................................................................2200mW
Operating Temperature Range .....................-40°C to +85°C
Junction Temperature .................................................+150°C
Storage Temperature Range .......................-65°C to +150°C
Lead Temperature (soldering, 10s) .............................+300°C


Description

The MAX3509 is a programmable power amplifier for use in CATV upstream applications. The device outputs up to 66dBmV QPSK through a 1:1 transformer. It features variable gain controlled by a 3-wire digital serial bus. Gain control is available in 1dB steps. The device operates over a 5MHz to 65MHz frequency range.

The MAX3509 offers a transmit-disable mode, which places the device in a high-isolation state for use between bursts in TDMA systems. In this mode, all analog functions of MAX3509 are shut down, minimizing output noise and power consumption. When entering and leaving transmit-disable mode, transients are kept to 25mV nominal at full gain. In addition, supply current is reduced to 7.8mA.

An additional power-down mode is available. Shutdown mode of MAX3509 disables all circuitry and reduces current consumption to less than 1µA.

The MAX3509 is available in a 20-pin TSSOP-EP package for the extended-industrial temperature range (-40°C to +85°C).




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