The SA605 is a high performance monolithic low-power FM IF system incorporating a
mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector,
muting, logarithmic received signal strength indicator (RSSI), and voltage regulator. The
SA605 combines the functions of NXP SA602A and SA604A, but features a higher mixer
input intercept point, higher IF bandwidth (25 MHz) and temperature compensated RSSI
and limiters permitting higher performance application. The SA605 is available in 20-lead
SO (surface-mounted miniature package) and 20-lead SSOP (shrink small outline
package).
The SA605 and SA615 are functionally the same device types. The difference between
the two devices lies in the guaranteed specifications. The SA615 has a higher ICC, lower
input third-order intercept point, lower conversion mixer gain, lower limiter gain, lower AM
rejection, lower SINAD, higher THD, and higher RSSI error than the SA605. Both the
SA605 and SA615 devices meet the EIA specifications for AMPS and TACS cellular radio
applications.