19-1535; Rev 1; 6/00
Adjustable, High-Linearity,
SiGe Dual-Band LNA/Mixer ICs
General Description
Features
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.
ꢀ Ultra-High Linearity at Ultra-Low Current and
Noise
ꢀ +2.7V to +3.6V Operation
ꢀ Pin-Selectable Low-Gain Mode Reduces Gain by
17dB and Current by 3mA
ꢀ Pin-Selectable Paging Mode Reduces Current
Draw by 6mA when Transmitter Is Not in Use
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.
ꢀ LO Output Buffers
ꢀ LO Frequency Doubler (MAX2321)
ꢀ LO Frequency Divider (MAX2326)
ꢀ 0.1µA Shutdown Current
ꢀ 20-Pin TSSOP-EP Package
Ordering Information
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.
PART
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
MAX2320EUP
MAX2321EUP
MAX2322EUP
MAX2324EUP
MAX2326EUP
MAX2327EUP
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).
Applications
Pin Configurations
CDMA/TDMA/PDC/WCDMA/GSM Cellular Phones
Single/Dual/Triple-Mode Phones
TOP VIEW
Wireless Local Loop (WLL)
LNAOUTH
LNAOUTL
RLNA
1
2
3
4
5
6
7
8
9
20 MIXINH
19 MIXINL
18 RBIAS
Selector Guide
LNAINH
LNAINL
BAND
17 CDMA+
PART
DESCRIPTION
MAX2320
20 TSSOP-EP
6mm x 6.3mm
16 CDMA-
MAX2320
MAX2321
Dual-band, dual VCO inputs, and dual IF outputs
MAX2320 with LO doubler
MAX2321
15 BUFFEN
MAX2326
LIN
14 V
CC
PCS band, single mode with optional frequency
doubler
MAX2322
GAIN
13 FMOUT
12 LOLOUT
11 LOHOUT
MAX2324
MAX2326
Cellular band, dual IF outputs
MAX2320 with LO divider
LOLIN
LOHIN 10
Dual-band, dual VCO inputs, and separately
controlled VCO buffers
MAX2327
TSSOP
Pin Configurations continued at end of data sheet.
Typical Application Circuits appear 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.
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