參數(shù)資料
型號(hào)： MAX9394EHJ
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 通用總線功能
英文描述： 2:1 Multiplexers and 1:2 Demultiplexers with Loopback
中文描述： LINE TRANSCEIVER, PQFP32
封裝： 5 X 5 MM, 1 MM HEIGHT, TQFP-32
文件頁(yè)數(shù)： 5/13頁(yè)
文件大小： 361K
代理商： MAX9394EHJ
M
2:1 Multiplexers and 1:2 Demultiplexers with
Loopback
_______________________________________________________________________________________
5
Pin Description
PIN
TQFP
QFN
NAME
FUNCTION
1, 2, 3, 30,
31, 32
1, 2, 28
N.C.
No Connection. Not internally connected.
4, 9, 20, 25
3, 8, 18, 23
GND
Ground
5
4
ENB
Channel B Output Enable. Drive ENB high to enable the LVDS outputs for channel B.
An internal 435k
resistor to GND pulls ENB low when unconnected.
6
5
OUTB
Channel B LVDS Noninverting Output. Connect a 100
termination resistor between
OUTB and
OUTB
at the receiver inputs to ensure proper operation.
7
6
OUTB
Channel B LVDS Inverting Output. Connect a 100
termination resistor between
OUTB and
OUTB
at the receiver inputs to ensure proper operation.
8, 13, 24, 29
7, 22, 27
V
CC
Power-Supply Input. Bypass each V
CC
to GND with a 0.1μF and 0.01μF ceramic
capacitor. Install both bypass capacitors as close to the device as possible, with the
0.01μF capacitor closest to the device.
10
9
INB0
LVDS/HSTL (MAX9394) or LVPECL/CML (MAX9395) Inverting Input. An internal
128k
pullup resistor to V
CC
pulls the input high when unconnected (MAX9394). An
internal 68k
resistor to GND pulls the input low when unconnected (MAX9395).
11
10
INB0
LVDS/HSTL (MAX9394) or LVPECL/CML (MAX9395) Noninverting Input. An internal
128k
pullup resistor to V
CC
pulls the input high when unconnected (MAX9394). An
internal 68k
resistor to GND pulls the input low when unconnected (MAX9395).
12
11
LB_SELB
Loopback Select for Channel B Output. Connect LB_SELB to GND or leave
unconnected to reproduce the INB_ (
INB_
) differential inputs at OUTB (
OUTB
).
Connect LB_SELB to V
CC
to loop back the INA (
INA
) differential inputs to OUTB
(
OUTB
). An internal 435k
resistor to GND pulls LB_SELB low when unconnected.
14
12
INB1
LVDS/HSTL (MAX9394) or LVPECL/CML (MAX9395) Inverting Input. An internal
128k
pullup resistor to V
CC
pulls the input high when unconnected (MAX9394). An
internal 68k
resistor to GND pulls the input low when unconnected (MAX9395).
15
13
INB1
LVDS/HSTL (MAX9394) or LVPECL/CML (MAX9395) Noninverting Input. An internal
128k
pullup resistor to V
CC
pulls the input high when unconnected (MAX9394). An
internal 68k
resistor to GND pulls the input low when unconnected (MAX9395).
16
14
BSEL
Channel B Multiplexer Control Input. Selects the differential input to reproduce at the
B channel differential output. Connect BSEL to GND or leave unconnected to select
the INB0 (
INB0
) set of inputs. Connect BSEL to V
CC
to select the INB1 (
INB1
) set of
inputs. An internal 435k
resistor to GND pulls BSEL low when unconnected.
17
15
ENA1
Channel A1 Output Enable. Drive ENA1 high to enable the A1 LVDS outputs. An
internal 435k
resistor to GND pulls the ENA1 low when unconnected.
18
16
OUTA1
Channel A1 LVDS Inverting Output. Connect a 100
termination resistor between
OUTA1 and
OUTA1
at the receiver inputs to ensure proper operation.
19
17
OUTA1
Channel A1 LVDS Noninverting Output. Connect a 100
termination resistor between
OUTA1 and
OUTA1
at the receiver inputs to ensure proper operation.
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