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MAX2325 Datasheet

Adjustable / High-Linearity / SiGe Dual-Band LNA/Mixer ICs

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MAX2325 pdf
19-1535; Rev 1; 6/00
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Adjustable, High-Linearity,
SiGe Dual-Band LNA/Mixer ICs
General Description
The MAX2320/MAX2321/MAX2322/MAX2324/MAX2326/
MAX2327 high-performance silicon germanium (SiGe)
receiver front-end ICs set a new industry standard for
low noise and high linearity at a low supply current. This
family integrates a variety of unique features such as an
LO frequency doubler and divider, dual low-noise
amplifier (LNA) gain settings, and a low-current paging
mode that extends the handset standby time.
The MAX2320 family includes six ICs: four operate at
both cellular and PCS frequencies, one operates at cel-
lular frequencies, and one at PCS frequencies (see
Selector Guide). Each part includes an LNA with a high
input third-order intercept point (IIP3) to minimize inter-
modulation and cross-modulation in the presence of
large interfering signals. In low-gain mode, the LNA is
bypassed to provide higher cascaded IIP3 at a lower
current. For paging, a low-current, high-gain mode is
provided.
The CDMA mixers in cellular and PCS bands have high
linearity, low noise, and differential IF outputs. The FM
mixer is designed for lower current and a single-ended
output.
All devices come in a 20-pin TSSOP-EP package with
exposed paddle (EP) and are specified for the extend-
ed temperature range (-40°C to +85°C).
Features
o Ultra-High Linearity at Ultra-Low Current and
Noise
o +2.7V to +3.6V Operation
o Pin-Selectable Low-Gain Mode Reduces Gain by
17dB and Current by 3mA
o Pin-Selectable Paging Mode Reduces Current
Draw by 6mA when Transmitter Is Not in Use
o LO Output Buffers
o LO Frequency Doubler (MAX2321)
o LO Frequency Divider (MAX2326)
o 0.1µA Shutdown Current
o 20-Pin TSSOP-EP Package
PART
MAX2320EUP
MAX2321EUP
MAX2322EUP
MAX2324EUP
MAX2326EUP
MAX2327EUP
Ordering Information
TEMP. RANGE
-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
PIN-PACKAGE
20 TSSOP-EP
20 TSSOP-EP
20 TSSOP-EP
20 TSSOP-EP
20 TSSOP-EP
20 TSSOP-EP
Applications
CDMA/TDMA/PDC/WCDMA/GSM Cellular Phones
Single/Dual/Triple-Mode Phones
Wireless Local Loop (WLL)
Selector Guide
PART
MAX2320
MAX2321
MAX2322
MAX2324
MAX2326
MAX2327
DESCRIPTION
Dual-band, dual VCO inputs, and dual IF outputs
MAX2320 with LO doubler
PCS band, single mode with optional frequency
doubler
Cellular band, dual IF outputs
MAX2320 with LO divider
Dual-band, dual VCO inputs, and separately
controlled VCO buffers
Typical Application Circuits appear at end of data sheet.
Pin Configurations
TOP VIEW
LNAOUTH 1
LNAOUTL 2
RLNA 3
LNAINH 4
20 TSSOP-EP
6mm x 6.3mm
LNAINL 5
BAND 6
LIN 7
GAIN 8
LOLIN 9
LOHIN 10
MAX2320
MAX2321
MAX2326
20 MIXINH
19 MIXINL
18 RBIAS
17 CDMA+
16 CDMA-
15 BUFFEN
14 VCC
13 FMOUT
12 LOLOUT
11 LOHOUT
TSSOP
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Maxim
Maxim


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