Linear LTC6602, Quick Start Manual, Page: 1 / 8

D E S C R IP T IO N
Demonstration Circuit 1304A features tw o programmable
filter ICs, the LTC6602 dual, matched, bandpass filter and
the LTC6603, dual, matched, low pass filter.
The DC1304A
The DC1304A The DC1304A The DC1304A----A A A A is for is for is for is for an LTC6602 and an LTC6602 and an LTC6602 and an LTC6602 and
The DC1304A The DC1304A The DC1304A The DC1304A----B is for B is for B is for B is for an LTC6603. an LTC6603. an LTC6603. an LTC6603.
The LTC® 6602 is a dual, programmable bandpass filter
and differential driver. The selectivity of the LTC6602 is
ideal for filtering baseband tag signals in R FID systems.
The LTC® 6603 is a dual, programmable low pass filter for
communications receivers and transmitters in TD-SCDM A,
W CDM A, CDM A2000, U M TS
and 802.11x systems. A
DC1304A-A or ---B board has tw o pairs of SM A connectors
for differential inputs and tw o pairs of SM A connectors for
differential outputs. The differential inputs can be AC cou-
pled or DC coupled. O n board jumpers provide control of an
LTC6602 or an LTC6603. The jumper control settings are:
serial or parallel control, internal or external clock, gain and
bandw idth control and input AC or DC coupling. An on
board multi-turn potentiometer sets the value of the R BIAS
resistor that sets the IC pow er supply current and clock
frequency. PCB turrets provide for board connections to an
SPI master for a serial control of IC gain and bandw idth.
LTC6602 features: LTC6602 features: LTC6602 features: LTC6602 features:
G uaranteed Phase and G ain M atching Specs
Programmable 5th O rder Low pass: 40 kH z to 900 kH z
Programmable 4th O rder H ighpass: 4 kH z to 90 kH z
Programmable G ain (0dB/12dB/24dB/30dB)
Simple Pin Programming or SPI Interface
Input R ange Extends from 0V to 5V
Low Voltage O peration: 2.7V to 3.6V
Shutdow n and M ute M ode
4mm × 4mm Q FN Package
LTC6603 features: LTC6603 features: LTC6603 features: LTC6603 features:
G uaranteed Phase and G ain M atching Specs
Programmable 9th O rder Low pass: 24 kH z to 2.5 M H z
Programmable G ain (0dB/6dB/12dB/24dB)
Simple Pin Programming or SPI Interface
Input R ange Extends from 0V to 5V
Low Voltage O peration: 2.7V to 3.6V
Shutdow n M ode
4mm × 4mm Q FN Package
T h e L T C 6 6 0 2 B L O C K D IA G
T h e L T C 6 6 0 2 B L O C K D IA G T h e L T C 6 6 0 2 B L O C K D IA G
T h e L T C 6 6 0 2 B L O C K D IA G R
R R
RA RA M
A RA M A RA M
A RA M
T h e L T C 6 6 0 3 B L O C K D IA T h e L T C 6 6 0 3 B L O C K D IA T h e L T C 6 6 0 3 B L O C K D IA T h e L T C 6 6 0 3 B L O C K D IA R R R RG A RA M G A RA M G A RA M G A RA M
Design Files for this circuit are available.
Design Files for this circuit are available. Design Files for this circuit are available. Design Files for this circuit are available.
Call the LTC factory.
Call the LTC factory. Call the LTC factory. Call the LTC factory.
, LTC and LT are registered trademarks of Linear Technology Corporation.
L T C 6 6 0 2 / L T C 6 6 0 3
P RO G RA M A B L E B A N D P A S S / L O W P A S S F IL T E R
D E M O C IRC U IT D E M O C IRC U IT D E M O C IRC U IT D E M O C IRC U IT 1 3 0 4 1 3 0 4 1 3 0 4 1 3 0 4
Q U IC K S T A RT G Q U IC K S T A RT G Q U IC K S T A RT G Q U IC K S T A RT G U ID E U ID E U ID E U ID E