MAX2741ETI Maxim Integrated Products, MAX2741ETI Datasheet - Page 11

• Manufacturer Part Number: MAX2741ETI
• Description: RF Receiver
• Manufacturer: Maxim Integrated Products

Specifications of MAX2741ETI

• Lead Free Status / Rohs Status: No

Table 9. Digital Test-Mode-Select Description
Digital Test Bus
The digital test bus (DTB) is provided to allow for easy
bench analysis of the digital workings of the receiver.
MODE
FROM GPS BPF
GPS RF INPUT
3
2
1
0
V
V
V
V
CC
CC
CC
CC
REGISTER SETTING
1nF
100pF
CONFIG1:D9 to D8
100pF
100pF
100nF
______________________________________________________________________________________
2.2pF
100pF
11
10
01
00
100pF
100pF
22pF
22pF
6.2nH
22nF
36kΩ
22pF
V
V
V
V
Integrated L1-Band GPS Receiver
RFIN
GND
N.C.
CC
CC
CC
CC
1
2
3
4
1
2
3
4
5
6
7
CHARGE PUMP UP
100pF
1612.8MHz
M COUNTER
CML CLOCK
V
LNA
28
3225.6MHz
8
CC
GPSIF2
SIGN
SPI CLOCK AND DATA INTO
VCO
BASEBAND PROCESSOR
90
27
9
SPI INTERFACE
Σ
/2
39pF
26
10
0
/192
FROM BASEBAND PROCESSOR
680pF
680pF
470µH
H/W SHUTDOWN LINE
25
11
200kHz
16.8MHz
/16128
33.6MHz
OSC
/96
REF
DIGITAL OUTPUT FUNCTION
24
12
P.D.
5.6pF
5.6pF
470µH
/R
CHARGE PUMP DOWN
CALIBRATE LPF END
MUX
MAX2741
23
13
R COUNTER
680pF
680pF
ADC
39pF
GPSIF1
22
14
Typical Application Circuit
LSB
220pF
(2MHz TO 26MHz)
SYSTEM TCXO
21
20
19
18
17
16
15
SDO
N.C.
V
GPSIF0
GPSIF1
GPSIF2
GPSCLK
CC
5
100pF
XTL CLOCK SELECTED
HANDSHAKE STATUS
1nF
SPI DATA OUT
TO BASEBAND PROCESSOR
GPSIF0
GPS DATA AND CLOCK
TO BASEBAND PROCESSOR
MSB
SDO
V
CC
11