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LTM9012 bảng dữ liệu(PDF) 12 Page - Linear Technology

tên linh kiện LTM9012
Giải thích chi tiết về linh kiện  Quad 14-Bit, 125Msps ADC with Integrated Drivers
PDF  28 Pages
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LTM9012 bảng dữ liệu(HTML) 12 Page - Linear Technology

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LTM9012
12
9012f
pin FuncTions
PAR/SER (P10): Programming Mode Selection Pin. Con-
necttogroundtoenabletheserialprogrammingmode.CS,
SCK, SDI and SDO become a serial interface that controls
the A/D operating modes. Connect to VDD to enable the
parallel programming mode where CS, SCK, SDI and SDO
become parallel logic inputs that control a reduced set of
the A/D operating modes. PAR/SER should be connected
directly to ground or the VDD of the part and not be driven
by a logic signal.
VREF (P11): Reference Voltage Output. VREF is internally
bypassed to ground with a 2.2μF ceramic capacitor, nomi-
nally 1.25V.
SENSE (N11): Reference Programming Pin. Connecting
SENSE to VDD selects the internal reference and a ±0.1V
input range. Connecting SENSE to ground selects the
internal reference and a ±0.05V input range. An external
reference between 0.625V and 1.3V applied to SENSE
selects an input range of ±0.08 • VSENSE. SENSE is inter-
nally bypassed to ground with a 0.1μF ceramic capacitor.
LVDS Outputs
All pins in this section are differential LVDS outputs. The
output current level is programmable. There is an optional
internal 100Ω termination resistor between the pins of
each LVDS output pair.
OUT1A–/OUT1A+, OUT1B–/OUT1B+ (Q9/Q10, R11/R12):
Serial data outputs for Channel 1. In 1-lane output mode
only OUT1A–/OUT1A+ are used.
OUT2A–/OUT2A+, OUT2B–/OUT2B+ (R9/R10, S11/S12):
Serial data outputs for Channel 2. In 1-lane output mode
only OUT2A–/OUT2A+ are used.
OUT3A–/OUT3A+, OUT3B–/OUT3B+ (S2/S3, R4/R5): Se-
rial data outputs for Channel 3. In 1-lane output mode
only OUT3A–/OUT3A+ are used.
OUT4A–/OUT4A+, OUT4B–/OUT4B+ (R2/R3, Q4/Q5): Se-
rial data outputs for Channel 4. In 1-lane output mode
only OUT4A–/OUT4A+ are used.
FR–/FR+ (S4/S5): Frame Start Output.
DCO–/DCO+ (S9/S10): Data Clock Output.
1
2
3
4
5
6
7
8
9
10
11
12
13
A
GND
CH4+
CH4–
GND
CH3+
CH3–
GND
CH2+
CH2–
GND
CH1+
CH1–
GND
B
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
C
GND
VCC3
GND
GND
GND
VCC3
GND
VCC2
GND
GND
GND
VCC2
GND
D
GND
GND
SHDN3
GND
GND
GND
GND
GND
SHDN2
GND
GND
GND
GND
E
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
F
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
G
SHDN4
GND
GND
GND
GND
GND
GND
GND
GND
GND
SHDN1
GND
GND
H
VCC4
GND
GND
VCC4
GND
GND
GND
GND
GND
VCC1
GND
GND
VCC1
J
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
K
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
L
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
M
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
N
ENC+
GND
GND
VDD
VDD
GND
GND
GND
VDD
VDD
SENSE
GND
GND
P
ENC–
GND
SDI
CS
SCK
GND
GND
GND
SDO
PAR/SER
REF
GND
GND
Q
GND
GND
GND
D4B–
D4B+
GND
GND
GND
D1A–
D1A+
GND
GND
GND
R
GND
D4A–
D4A+
D3B–
D3B+
GND
OVDD
OVDD
D2A–
D2A+
D1B–
D1B+
GND
S
GND
D3A–
D3A+
FR–
FR+
GND
GND
OVDD
DCO–
DCO+
D2B–
D2B+
GND
pin conFiguraTion Table



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