MAX2769ETI+ Maxim Integrated Products, MAX2769ETI+ Datasheet - Page 4

• Manufacturer Part Number: MAX2769ETI+
• Description: RF Receiver Low-Power GPS and GL ONASS Receiver with
• Manufacturer: Maxim Integrated Products

Specifications of MAX2769ETI+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Universal GPS Receiver
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2769 EV kit, V
is driven from a 50Ω source. All RF measurements are done in the analog output mode with ADC bypassed. PGA gain is set to 51dB
gain by serial-interface word GAININ = 111010. Maximum IF output load is not to exceed 10kΩ || 7.5pF on each pin. Typical values
are at V
4
Note 1: MAX2769 is production tested at T
Note 2: Default, low-NF mode of the IC. LNA choice is gated by the ANT_FLAG signal. In the normal mode of operation without an
Note 3: The LNA output connects to the mixer input without a SAW filter between them.
Note 4: Two tones are located at 12MHz and 24MHz offset frequencies from the GPS center frequency of 1575.42MHz
Note 5: Measured from the LNA input to the LNA output. Two tones are located at 12MHz and 24MHz offset frequencies from the
FREQUENCY SYNTHESIZER
LO Frequency Range
LO Tuning Gain
Reference Input Frequency
Main Divider Ratio
Reference Divider Ratio
Charge-Pump Current
TCXO INPUT BUFFER/OUTPUT CLOCK BUFFER
Reference Input Level
Clock Output Multiply/Divide
Range
ADC
ADC Differential Nonlinearity
ADC Integral Nonlinearity
_______________________________________________________________________________________
CC
from -40°C to +85°C, unless otherwise noted. Default register settings are not production tested or guaranteed. User must
program the registers upon power-up.
active antenna, LNA1 is active. If an active antenna is connected and ANT_FLAG switches to 1, LNA1 is automatically
disabled and LNA2 becomes active. PLL is in an integer-N mode with f
complex IF filter is configured as a 5th-order Butterworth filter with a center frequency of 4MHz and bandwidth of 2.5MHz. Output
data is in a 2-bit sign/magnitude format at CMOS logic levels in the I channel only.
at -60dBm/tone. Passive pole at the mixer output is programmed to be 13MHz.
GPS center frequency of 1575.42MHz at -60dBm per tone.
PARAMETER
= 2.85V and T
CC
= 2.7V to 3.3V, T
A
= +25°C, unless otherwise noted.) (Note 1)
0.4V < V
ICP = 0
ICP = 1
Sine wave
AGC enabled, 3-bit output
AGC enabled, 3-bit output
A
= -40°C to +85°C, PGM = GND. Registers are set to the default power-up states. LNA input
A
= +25°C. All min/max specifications are guaranteed by design and characterization
TUNE
< 2.4V
CONDITIONS
COMP
= f
TCXO
/ 16 = 1.023MHz and I
1550
MIN
0.4
36
÷4
8
1
TYP
±0.1
±0.1
0.5
57
1
CP
32,767
MAX
1610
1023
= 0.5mA. The
44
x2
UNITS
MHz/V
MHz
MHz
V
LSB
LSB
mA
—
—
—
P-P