max2114ugh-td Maxim Integrated Products, Inc., max2114ugh-td Datasheet

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max2114ugh-td

Manufacturer Part Number
max2114ugh-td
Description
Max2114 Dbs Direct Downconverter
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX2114 low-cost, direct-conversion tuner is
designed for use in digital direct-broadcast satellite
(DBS) television set-top box units. Its direct-conversion
architecture reduces system cost compared to devices
with IF-based architectures. The MAX2114 directly
tunes L-band signals to baseband using a broadband
I/Q downconverter. The operating frequency range
spans 925MHz to 2175MHz.
The MAX2114 includes a low-noise amplifier (LNA) with
gain control, I and Q downconverting mixers, lowpass
filters with gain and frequency control, a local oscillator
(LO) buffer with a 90° quadrature network, and a
charge-pump-based phase-locked loop (PLL) for fre-
quency control. The MAX2114 has an on-chip LO,
requiring only an external varactor-tuned LC tank for
operation. The LO’s output drives the internal quadra-
ture generator and has a buffer amplifier to drive off-
chip circuitry. The MAX2114 comes in a 44-pin QFN
package with exposed paddle (EP).
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
19-1814; Rev 0; 11/00
U.S. DSS Set-Top Receivers
European DVB-Compliant
Systems
Cellular Base Stations
Wireless Local Loop
RFIN+
RFIN-
QDC+
TOP VIEW
QDC-
CFLT
XTL+
XTL-
GND
GND
V
V
CC
CC
10
11
1
2
3
4
5
6
7
8
9
________________________________________________________________ Maxim Integrated Products
General Description
MAX2114
QFN-EP
Pin Configuration
Broadband Systems
LMDS
Professional Receivers
VSAT
Microwave Links
Applications
33
32
31
30
29
28
27
26
25
24
23
PLLIN-
PLLIN+
MOD-
MOD+
IOUT+
IOUT-
V
QOUT+
QOUT-
RFBAND
FLCLK
CC
DBS Direct Downconverter
o Complete Low-Cost Solution for DBS Direct
o High Level of Integration Minimizes Component
o 1MBaud to 45MBaud Operation
o Selectable LO Buffer
o +5V Single-Supply Operation
o 925MHz to 2175MHz Input Frequency Range
o On-Chip Quadrature Generator, Dual-Modulus
o On-Chip Crystal Oscillator Amplifier
o PLL Phase Detector with Gain-Controlled Charge
o Input Levels: -25dBm to -68dBm per Carrier
o Over 50dB Gain Control Range
o Noise Figure = 10.6dB; IIP3 = +10.7dBm
o Automatic Baseband Offset Correction
Functional Diagram appears at end of data sheet.
*Exposed paddle
MAX2114UGH
Downconversion
Count
Prescaler (/32, /33)
Pump
(at 1550MHz)
PART
TEMP. RANGE
0°C to +85°C
Ordering Information
44 QFN-EP*
PIN-PACKAGE
Features
1

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max2114ugh-td Summary of contents

Page 1

... On-Chip Crystal Oscillator Amplifier o PLL Phase Detector with Gain-Controlled Charge Pump o Input Levels: -25dBm to -68dBm per Carrier o Over 50dB Gain Control Range Applications o Noise Figure = 10.6dB; IIP3 = +10.7dBm (at 1550MHz) o Automatic Baseband Offset Correction PART MAX2114UGH *Exposed paddle PLLIN PLLIN+ MOD MOD+ ...

Page 2

DBS Direct Downconverter ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +7V CC All Other Pins to GND................................-0. RFIN+ to RFIN-, TANK+ to TANK-, IDC+ to IDC-, QDC+ to QDC- .........................................±2V IOUT_, QOUT_ to GND Short-Circuit Duration .......................10s ...

Page 3

DC ELECTRICAL CHARACTERISTICS (continued +4.75V to +5.25V +2.4V +0.5V FBAND INSEL LOBUFSEL +25°C, unless otherwise noted. Typical values are at V PARAMETER SYMBOL Charge-Pump Output Low Measured ...

Page 4

DBS Direct Downconverter AC ELECTRICAL CHARACTERISTICS (continued driven single-ended with RFIN- AC-terminated in 75Ω to GND, V FIN 10pF 500kHz, R IOUT_ QOUT_ FCLK +1.3V ...

Page 5

AC ELECTRICAL CHARACTERISTICS (continued) (IC driven single-ended with RFIN- AC-terminated in 75Ω to GND 10pF 500kHz, R IOUT_ QOUT_ FCLK +1.3V PLLIN+ MOD+ PLLIN- PARAMETER SYMBOL ...

Page 6

DBS Direct Downconverter PIN NAME 1, 6, 17, V Power-Supply Input. Connect each pin to a +5V ±5% low-noise supply. Bypass each 27, 36, 41 the nearest GND with a ceramic chip capacitor. 2 CFLT External ...

Page 7

PIN NAME PECL Modulus Control. A PECL low on MOD- sets the dual-modulus prescaler to divide by 32 MOD- PECL logic high sets the divide ratio to 33. Drive with a differential PECL signal in conjunction with MOD+ ...

Page 8

DBS Direct Downconverter CPG1 CPG2 PLLIN+ PLLIN- XTL+ XTL- LODIVSEL MOD+ MOD- RFBAND TANK+ TANK VRLO CFLT GND RFIN+ RFIN- GC1 GC2 FLCLK INSEL Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied ...

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