MAX2121 데이터 시트보기 (PDF) - Maxim Integrated
부품명
상세내역
제조사
MAX2121 Datasheet PDF : 18 Pages
| |||
Complete Direct-Conversion L-Band Tuner
Pin Configuration
TOP VIEW
28
27
26
25
24
23
22
VCC_RF2 1
21 IDC+
+
VCC_RF1 2
20 IOUT-
GND 3
RFIN 4
MAX2121
19 IOUT+
18 QOUT-
GC1 5
17 QOUT+
VCC_LO 6
VCC_VCO 7
8
16 VCC_DIG
EP
15 REFOUT
9
10
11
12
13
14
TQFN
(5mm x 5mm)
Pin Description
PIN
NAME
FUNCTION
1
VCC_RF2
DC Power Supply for LNA. Connect to a +3.3V low-noise supply. Bypass to GND with a 1nF capacitor
connected as close as possible to the pin. Do not share capacitor ground vias with other ground connections.
2
VCC_RF1
DC Power Supply for LNA. Connect to a +3.3V low-noise supply. Bypass to GND with a 1nF capacitor
connected as close as possible to the pin. Do not share capacitor ground vias with other ground connections.
3
GND Ground. Connect to board’s ground plane for proper operation.
4
RFIN Wideband 75 RF Input. Connect to an RF source through a DC-blocking capacitor.
5
GC1
RF Gain-Control Input. High-impedance analog input with a 0.5V to 2.7V operating range.
VGC1 = 0.5V corresponds to the maximum gain setting.
DC Power Supply for LO Generation Circuits. Connect to a +3.3V low-noise supply. Bypass to GND
6
VCC_LO with a 1nF capacitor connected as close as possible to the pin. Do not share capacitor ground vias
with other ground connections.
DC Power Supply for VCO Circuits. Connect to a +3.3V low-noise supply. Bypass to GND with a 1nF
7
VCC_VCO capacitor connected as close as possible to the pin. Do not share capacitor ground vias with other
ground connections.
_______________________________________________________________________________________ 7
Share Link: 