MAX3510EEP Datasheet Download

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MAX3510EEP
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Description:
[Upstream CATV Amplifier]
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151 K
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12 Pages
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Manufacturer:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype
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19-1398; Rev 4; 5/07
KIT
ATION
EVALU
BLE
AVAILA
Upstream CATV Amplifier
General Description
Features
Ultra-Low Power-Up/Down Transients,
7mV Typical at 59dBmV Output
Single +5V Supply
Output Level Ranges from <8dBmV to 64dBmV
Gain Programmable in 1dB Steps
Low Transmit Output Noise Floor: -47dBmV
(160kHz BW)
Low Transmit-Disable Output Noise: -70dBmV
Two Power-Down Modes
MAX3510
The MAX3510 is a programmable power amplifier for
use in CATV upstream applications. The device outputs
up to 64dBmV (continuous wave) through a 2:1 (voltage
ratio) 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 frequency
range of 5MHz to 65MHz.
The MAX3510 offers a transmit-disable mode, which
places the device in a high-isolation state for use
between bursts in TDMA systems. In this mode the out-
put stage is shut off, minimizing output noise. When
entering and leaving transmit-disable mode, transients
are kept to 7mV nominal at full gain. In addition, supply
current is reduced to 25mA.
Two power-down modes are available. Software-shutdown
mode permits power-down of all analog circuitry while
maintaining the programmed gain setting. Shutdown
mode disables all circuitry and reduces current consump-
tion to less than 10µA.
The MAX3510 is available in a 20-pin QSOP package
for the extended-industrial temperature range (-40°C to
+85°C).
Ordering Information
PART
MAX3510EEP
MAX3510EEP+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
20 QSOP
20 QSOP
+Denotes
lead-free package.
Applications
Cable Modems
CATV Set-Top Boxes
Telephony-Over-Cable
CATV Status Monitors
Pin Configuration appears at end of data sheet.
Typical Operating Circuit
12
CONTROL
LOGIC
0.001µF
+
5
VIN+
VOUT+
INPUT
ANTI-ALIAS
FILTER
16
SHDN
18
TXEN
V
CC
2
CEXT1
GND2
20
19
17
0.0033µF
2:1
OUTPUT
+5V
0.1µF
+5V
MAX3510
+5V
0.1µF
6
0.001µF 2
4
3
7
1
VIN-
V
CC
1
GND1
GND
GND
GND
VOUT-
15
0.1µF
0.1µF
CEXT2
N.C.
GND
SCLK
SDA
CS
14
13
11
10
9
8
CONTROL
LOGIC
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.