
MAX2828/MAX2829
Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs
AC ELECTRICAL CHARACTERISTICS — Timing (continued)
(MAX2828/MAX2829 evaluation kits: V CC = 2.7V, f RF = 2.437GHz (802.11g) or f RF = 5.25GHz (802.11a), f REFOSC = 40MHz, SHDN =
CS = high, SCLK = DIN = low, PLL loop bandwidth = 150kHz, R BIAS = 11k ? , T A = +25 ° C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
3-WIRE SERIAL INTERFACE TIMING (SEE FIGURE 2)
SCLK-Rising-Edge to CS -Falling-
Edge Wait Time, t CSO
Falling Edge of CS to Rising
Edge of First SCLK Time, t CSS
DIN-to-SCLK Setup Time, t DS
DIN-to-SCLK Hold Time, t DH
SCLK Pulse-Width High, t CH
SCLK Pulse-Width Low, t CL
Last Rising Edge of SCLK to
Rising Edge of CS or Clock to
Load Enable Setup Time, t CSH
CS High Pulse Width, t CSW
Time Between the Rising Edge of
CS and the Next Rising Edge of
SCLK, t CS1
Clock Frequency, f CLK
Rise Time, t R
Fall Time, t F
6
6
6
6
6
6
6
20
6
40
2
2
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
ns
ns
Note 1: Devices are production tested at +85 ° C only. Min and max limits at temperatures other than +85 ° C are guaranteed by
design and characterization.
Note 2: Register settings for MIMO mode. A3:A0 = 0101 and A3:A0 = 0010, D13 = 1.
Note 3: The expected part-to-part variation of the RF gain step is ± 1dB.
Note 4: Tx I/Q inputs = 100mV RMS . Set Tx VGA gain to max.
Table 1. Receiver Front-End Gain-Control
Settings
Table 2. Receiver Baseband VGA Gain
Settings
B7
1
1
0
B6
1
0
X
GAIN
High
Medium
Low
B5:B1
11111
11110
11101
GAIN
Max
Max - 2dB
Max - 4dB
Maxim Integrated
:
00000
:
Min
13