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W-CDMA/W-TDD/TD-SCDMA Zero-IF Receivers
AC ELECTRICAL CHARACTERISTICS (continued)
(Devices tested on their respective evaluation kits (EV kits); LNA input port is driven with a 50 ? source; LNA output port is terminated
with 50 ? load, mixer differential input port is driven through a 1:4 impedance balun with a 50 ? source; baseband I/Q output differential
load = 10k ? || 5pF; reference oscillator input: 19.2MHz (MAX2390/MAX2391/MAX2392/MAX2393), 26MHz (MAX2401), 15.36MHz
(MAX2396/MAX2400); AGC is set to result in a 0.3V P-P differential output-voltage swing at the baseband I/Q output; registers set to
power-up defaults ( Table 2); T A = -40°C to +85°C. Typical values are for V CC = 2.8V and T A = +25°C, unless otherwise noted.)
Note 4: MAX2391/MAX2396 : tones at 2025.0MHz and 1930.0MHz (-28dBm/tone); receiver tuned for input RF of 2120.0MHz.
MAX2392 : tones at 2020.6MHz and 2023.8MHz (-35dBm/tone); receiver tuned for input RF of 2017.4MHz.
MAX2393 : tones at 1910.0MHz and 1920.0MHz (-35dBm/tone); receiver tuned for input RF of 1900.0MHz.
MAX2390/MAX2400 : tones at 1963.5MHz and 1965.9MHz (-35dBm/tone); receiver tuned for input RF of 1960.0MHz.
MAX2401 : tones at 1846MHz and 1848.4MHz (-35dBm/tone); receiver tuned for input RF of 1842.4MHz.
Note 5: Voltage gain defined as the differential baseband RMS I or Q output voltage, measured across the 10k ? load, divided by
the RMS differential input voltage at RF+/RF-.
Note 6: NF is constant or flattens out for AGC voltage ≥ 1.75V.
Note 7: MAX2391/MAX2396 : tones at 2150.0MHz and 2160.18MHz (-35dBm/tone); receiver tuned for input RF of 2140MHz.
MAX2392 : tones at 2020.6MHz and 2023.98MHz (-35dBm/tone); receiver tuned for input RF of 2017.4MHz.
MAX2393 : tones at 1910.0MHz and 1919.82MHz (-35dBm/tone); receiver tuned for input RF of 1900.0MHz.
MAX2390/MAX2400 : tones at 1970.0MHz and 1980.18MHz (-35dBm/tone); receiver tuned for input RF of 1960.0MHz.
MAX2401 : tones at 1852.4MHz and 1862.58MHz (-35dBm/tone); receiver tuned for input RF of 1842.4MHz.
Measure IM3 product at 180kHz.
Note 8:
Note 9:
MAX2390/MAX2400 : tones at 1963.5MHz and 1965.9MHz (-35dBm/tone); receiver tuned for input RF of 1960.0MHz, IM3 at
1.1MHz baseband.
MAX2401 : tones at 1846MHz and 1848.4MHz (-35dBm/tone); receiver tuned for input RF of 1842.4MHz. IM3 at 1.2 MHz
baseband.
MAX2391/MAX2396 : tones at 1950.0MHz and 1950.18MHz (-35dBm/tone); receiver tuned for input RF of 2140MHz.
MAX2390/MAX2400 : tones at 1880.0MHz and 1880.18MHz (-35dBm/tone); receiver tuned for input RF of 1960.0MHz.
MAX2401 : tones at 1747.4MHz and 1747.58MHz (-35dBm/tone); receive tuned for input RF of 1842.4MHz.
Measure IM2 product at 180kHz.
Note 10: MAX2391/MAX2396 : tones at 2155.0MHz and 2155.18MHz (-35dBm/tone); receiver tuned for input RF of 2140MHz.
MAX2392 : tones at 2022.2MHz and 2022.38MHz (-35dBm/tone); receiver tuned for input RF of 2017.4MHz.
MAX2393 : tones at 1915.0MHz and 1915.18MHz (-35dBm/tone); receiver tuned for input RF of 1900.0MHz.
MAX2390/MAX2400 : tones at 1975.0MHz and 1975.18MHz (-35dBm/tone); receiver tuned for input RF of 1960.0MHz.
MAX2401 : tones at 1857.4MHz and 1857.58MHz (-35dBm/tone); receiver tuned for input RF of 1842.4MHz.
Measure IM2 product at 180kHz.
Note 11: The receiver is tested using the DL reference measurement channel (12.2kbps) as specified in subclause C.3.1 in the
3GPP 25.101 standard document.
Note 12: I/Q differential output load impedance is 5k ? minimum (10k ? typical) in parallel with 5pF.
Timing Diagram
3-WIRE SERIAL INTERFACE TIMING
SDATA
BIT 1
BIT 2
BIT 15
BIT 16
BIT 23
BIT 24
SCLK
t CWH
t CWL
CS
t CS
t CH
t ES
NOTE: DATA SHIFTED ON RISING EDGE OF CLOCK DATA IS SHIFTED IN BIT 1 FIRST AS DEFINED IN THE PLL BIT REGISTER.
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