MAX3514EEP-T Maxim Integrated Products, MAX3514EEP-T Datasheet

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MAX3514EEP-T

Manufacturer Part Number
MAX3514EEP-T
Description
Manufacturer
Maxim Integrated Products
Datasheet

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Part Number:
MAX3514EEP-T
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
MAX3514EEP-TG074
Quantity:
550
The MAX3514/MAX3516/MAX3517 programmable-gain
amplifiers are designed for use in CATV upstream
applications. The MAX3514/MAX3517 drive up to
+61dBmV (QPSK) into a 75Ω load when driven with a
+34dBmV nominal input signal. The MAX3516 drives
up to +64dBmV (QPSK). Both input and output ports
are differential, requiring that an external balun be used
at the output port. The variable gain feature provides
greater than 56dB of dynamic range, which is con-
trolled by an SPI™ 3-wire interface. Gain control is
available in 0.5dB steps. The devices operate over a
frequency range of 5MHz to 65MHz.
The MAX3514 is a pin-for-pin compatible upgrade for
the MAX3510. Like the MAX3510, the MAX3514 is inter-
nally matched for use with a 2:1 (voltage ratio) balun.
The MAX3517 utilizes an external output resistor for
greater load-matching flexibility, and offers the same
performance as the MAX3514. The MAX3516 is a high-
er power version of the MAX3514 with 3dB more gain
and output power capability, and is offered in a smaller
thermally enhanced TSSOP-EP package.
These devices operate from a single +5VDC supply and
draw 120mA during transmit (100% duty cycle,
+61dBmV out). The MAX3516 can be operated at up to
+9VDC supply for improved harmonic distortion perfor-
mance. The bias current is automatically adjusted based
on the output level to increase efficiency. Additionally,
the devices are shut off between bursts to minimize
noise and save power while still maintaining a match at
the output port. Shutdown mode disables all circuitry and
reduces current consumption to 10µA (typ).
The MAX3514/MAX3517 are available in a 20-pin QSOP
package and the MAX3516 is available in a 20-pin
TSSOP-EP package. All devices operate in the extend-
ed industrial temperature range (-40°C to +85°C).
19-1826; Rev 4; 9/06
Typical Operating Circuit appears at end of data sheet.
SPI is a trademark of Motorola Corp.
DOCSIS/EuroDOCSIS/OpenCable are trademarks of
CableLabs.
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.
________________________Applications
DOCSIS /EuroDOCSIS
Modems
OpenCable
Telephony-Over-Cable
CATV Status Monitors
________________________________________________________________ Maxim Integrated Products
Set-Top Boxes
General Description
and DVB Cable
Upstream CATV Amplifiers
♦ Accurate Gain Control
♦ Gain Programmable in 0.5dB Steps
♦ 56dB of Gain Control Range
♦ -55dBc Harmonic Distortion at 65MHz Input
♦ Low Burst On/Off Transient
♦ High Efficiency:
* EP = Exposed paddle.
+ Denotes lead-free package.
MAX3514EEP
MAX3514EEP+
MAX3516EUP
MAX3516EUP+
MAX3517EEP
MAX3517EEP+
TOP VIEW
35mA at +34dBmV Out
8mA Transmit Disable Mode
PART
SCLK
GND
GND
GND
GND
SDA
V
IN+
IN-
CS
CC
10
1
2
3
4
5
6
7
8
9
QSOP/TSSOP-EP
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
MAX3514
MAX3516
MAX3517
Ordering Information
EXPOSED
PADDLE*
Pin Configuration
20
19
18
17
16
15
14
13
12
11
GND
V
TXEN
N.C.
OUT+
OUT-
CEXT (N.C.)
N.C.
SHDN
GND
CC
PIN-
PACKAGE
20 QSOP
20 QSOP
20 TSSOP-EP*
20 TSSOP-EP*
20 QSOP
20 QSOP
( ) FOR MAX3517 ONLY
* MAX3516 ONLY
Features
1

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MAX3514EEP-T Summary of contents

Page 1

... Low Burst On/Off Transient ♦ High Efficiency: 35mA at +34dBmV Out 8mA Transmit Disable Mode Ordering Information PART TEMP RANGE MAX3514EEP -40°C to +85°C MAX3514EEP+ -40°C to +85°C MAX3516EUP -40°C to +85°C MAX3516EUP+ -40°C to +85°C MAX3517EEP -40°C to +85°C MAX3517EEP+ -40° ...

Page 2

Upstream CATV Amplifiers ABSOLUTE MAXIMUM RATINGS V , OUT+, OUT-................................................-0.3V to +10.0V CC Input Voltage Levels (all inputs) .................-0. Continuous Input Voltage (IN+, IN-) ...................................2Vp-p Continuous Current (OUT+, OUT-) ...................................120mA Continuous Power Dissipation (T = +70°C) A 20-Pin ...

Page 3

AC ELECTRICAL CHARACTERISTICS—MAX3514 (MAX3514 EV kit +4.75V to +5.25V ters are +5V +25°C, unless otherwise specified.) (Note PARAMETER SYMBOL Voltage Gain 5MHz IN (Note 2) Voltage ...

Page 4

Upstream CATV Amplifiers AC ELECTRICAL CHARACTERISTICS—MAX3514 (continued) (MAX3514 EV kit +4.75V to +5.25V ters are +5V +25°C, unless otherwise specified.) (Note PARAMETER SYMBOL Output Return Loss in Transmit- ...

Page 5

AC ELECTRICAL CHARACTERISTICS—MAX3516 (MAX3516 EV kit +4.75V to +5.25V ters are +5V +25°C, unless otherwise specified.) (Note PARAMETER SYMBOL Voltage Gain 5MHz IN (Note 2) Voltage ...

Page 6

Upstream CATV Amplifiers AC ELECTRICAL CHARACTERISTICS—MAX3516 (continued) (MAX3516 EV kit +4.75V to +5.25V ters are +5V +25°C, unless otherwise specified.) (Note PARAMETER SYMBOL Transmit Enable Transient Duration Transmit ...

Page 7

AC ELECTRICAL CHARACTERISTICS—MAX3517 (MAX3517 EV kit +4.75V to +5.25V ters are +5V +25°C, unless otherwise specified.) (Note PARAMETER SYMBOL Voltage Gain 5MHz IN Gain Step Size ...

Page 8

Upstream CATV Amplifiers AC ELECTRICAL CHARACTERISTICS—MAX3517 (continued) (MAX3517 EV kit +4.75V to +5.25V ters are +5V +25°C, unless otherwise specified.) (Note PARAMETER SYMBOL Transmit Disable Transient Duration Transmit ...

Page 9

TIMING CHARACTERISTICS = 0, TXEN = SHDN = high 4.75V to 5.25V GND PARAMETER SYMBOL SEN to SCLK Setup Time SEN to SCLK Hold Time SDA to SCLK Setup Time SDA to ...

Page 10

Upstream CATV Amplifiers _____________________________Typical Operating Characteristics (continued) (Typical operating circuit +5V otherwise noted.) VOLTAGE GAIN vs. SUPPLY VOLTAGE LOW-NOISE MODE -25.0 GAIN CODE = 48 -25.2 -25 - -25.6 -25.8 -26.0 -26.2 ...

Page 11

V = +5V otherwise noted.) 2ND HARMONIC DISTORTION vs. INPUT FREQUENCY -50 6dBmV, LN -55 -60 20dBmV, LN 50dBmV, HP -65 61dBmV, HP -70 -75 - INPUT FREQUENCY ...

Page 12

Upstream CATV Amplifiers (Typical operating circuit +5V otherwise noted.) SUPPLY CURRENT vs. TEMPERATURE 180 150 TRANSMIT-ENABLE MODE, HIGH-POWER, GAIN CODE = 125 120 90 TRANSMIT-ENABLE MODE, 60 LOW-NOISE, GAIN CODE = 100 30 TRANSMIT-DISABLE MODE 0 ...

Page 13

V = +5V otherwise noted.) GAIN STEP vs. GAIN MODE HIGH-POWER MODE 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 100 110 120 GAIN CODE 2ND HARMONIC DISTORTION ...

Page 14

Upstream CATV Amplifiers (Typical operating circuit +5V otherwise noted.) OUTPUT IMPEDANCE, 5MHz–65MHz (75 SYSTEM) LOW-NOISE MODE/TRANSMIT- DISABLE MODE HIGH-POWER MODE OUTPUT SPECTRUM 0 VOUT = 61dBmV -10 = 0.25 -20 160ksps -30 -40 -50 -60 -70 ...

Page 15

PIN NAME GND Ground Programmable-Gain Amplifier (PGA) +5V Supply. Bypass to pin 4 with a decoupling capacitor close to the part as possible. PGA RF Ground. As with all ground connections, maintain ...

Page 16

Upstream CATV Amplifiers TXEN BIAS SHDN CONTROL V CC IN+ IN- D/A CONVERTER SERIAL DATA INTERFACE Detailed Description Programmable-Gain Amplifier The PGA consists of the variable-gain amplifier (VGA) and the digital-to-analog converter (DAC), which pro- vide better than 56dB of ...

Page 17

PGA and the output amplifiers. Tables 1 and 2 show the register format. Serial-interface timing is shown in Figure 1. Applications Information High-Power and Low-Noise Modes The MAX3514/MAX3516/MAX3517 have two transmit modes, high power (HP) and ...

Page 18

Upstream CATV Amplifiers be lost upon entering this mode. Current consumption is reduced to 10µA (typ) in shutdown mode. When used in conjunction with a 2:1 voltage-ratio trans- former, the MAX3514/MAX3516 are internally resistively matched to 75Ω. This internal resistor ...

Page 19

Power-Supply Layout For minimal coupling between different sections of the IC, the ideal power-supply layout is a star configuration. This configuration has a large-value decoupling capac- itor at the central power-supply node. The power-sup- ply traces branch out from this ...

Page 20

Upstream CATV Amplifiers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 20 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, TSSOP 4.40mm BODY 1 21-0066 G 1 ...

Page 21

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 21 © 2006 Maxim Integrated Products ...

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