MAX2837(2008) Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Lista de partido
MAX2837 Datasheet PDF : 18 Pages
| |||
2.3GHz to 2.7GHz Wireless
Broadband RF Transceiver
DC ELECTRICAL CHARACTERISTICS (continued)
(MAX2837 evaluation kit: VCC_ = 2.7V to 3.6V, Rx set to the maximum gain; CS = high, RXHP = SCLK = DIN = low, RSSI and clock output
buffer are off, no signal at RF inputs, all RF inputs and outputs terminated into 50Ω, receiver baseband outputs are open; 90mVRMS dif-
ferential I and Q signals applied to I, Q baseband inputs of transmitter in transmit mode, fREF = 40MHz, registers set to recommended
settings and corresponding test mode, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = 2.8V, fLO = 2.5GHz,
and TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
LOGIC OUTPUTS: DOUT
Digital Output-Voltage High, VOH Sourcing 100µA
VCC -
0.4
V
Digital Output-Voltage Low, VOL Sinking 100µA
0.4
V
AC ELECTRICAL CHARACTERISTICS—Rx MODE
(MAX2837 evaluation kit: VCC_ = 2.8V, fRF = 2.502GHz, fLO = 2.5GHz; receiver baseband I/Q outputs at 90mVRMS
(-21dBV), fREF = 40MHz, ENABLE = RXENABLE = CS = high, TXENABLE = SCLK = DIN = low, with power matching for the differential RF
pins using the typical applications and registers set to default settings and corresponding test mode, TA = +25°C, unless otherwise noted.
Lowpass filter is set to 10MHz RF channel BW. Unmodulated single-tone RF input signal is used, unless otherwise indicated.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
RECEIVER SECTION: LNA RF INPUT TO BASEBAND I/Q OUTPUTS
RF Input Frequency Range
2.3
2.7
GHz
Peak-to-Peak Gain Variation over
RF Input Frequency Range
Tested at band edges and band center
0.8
dB
RF Input Return Loss
Total Voltage Gain
RF Gain Steps
All LNA gain settings
Maximum gain, B7:B1 = 0000000
TA = -40°C to +85°C
Minimum gain, B7:B1 = 1111111
From max RF gain to max RF gain - 8dB
From max RF gain to max RF gain - 16dB
From max RF gain to max RF gain - 32dB
13
dB
90
99
dB
5
13
8
16
dB
32
Any RF or baseband gain change; gain settling to within
±1dB of steady state; RXHP = 1
0.2
Gain Change Settling Time
µs
Any RF or baseband gain change; gain settling to within
2
±0.1dB of steady state; RXHP = 1
Baseband Gain Range
From maximum baseband gain (B5:B1 = 00000) to
minimum baseband gain (B5:B1 = 11111),
TA = -40°C to +85°C
58
62
66
dB
Baseband Gain Minimum
Step Size
DSB Noise Figure
Voltage gain ≥ 65dB with max RF gain (B7:B6 = 00)
Voltage gain = 50dB with max RF gain - 8dB
(B7:B6 = 01)
Voltage gain = 45dB with max RF gain - 16dB
(B7:B6 = 10)
2
dB
2.3
5.5
dB
17
Voltage gain = 15dB with max RF gain - 32dB
27
(B7:B6 = 11)
_______________________________________________________________________________________ 3
Share Link: 