cxa1843q Sony Electronics, cxa1843q Datasheet - Page 3

• Manufacturer Part Number: cxa1843q
• Description: High-speed Sample-and-hold Ic
• Manufacturer: Sony Electronics

No.
Pin
12
13
14
15
16
17
18
19
20
AV
AV
REFOUT
REFFB
NC
AV
REFIN
REX2
NC
Symbol
CC3
EE3
CC4
–2.8V
As shown in the
Application
Circuit, PNP TR.
is connected
and 2.5V is
applied to
Pin18.
–2V
As shown in the
Application
Circuit, PNP TR.
is connected
and 2.5V is
applied to
Pin18.
Approx. 0.5V
When external
resistor is
connected
between Pin 19
and AGND
2.5V (Typ.)
Pin voltage
–5V (Typ.)
5V (Typ.)
5V (Typ.)
—
—
DV
DV
AV
AV
REX2
GND
REFIN
DV
AV
CC4
EE3
CC2
EE2
GND
EE2
CC4
Equivalent circuit
130
400µ
– 3 –
130
130
1k
300µ
REFFB
REFOUT
DV
0.5V
EE2
Analog positive power supply.
Analog negative power supply.
Connect the base of the
external PNP transistor to
create a –2V power supply.
Connect the emitter of the
external PNP transistor to
create a –2V power supply.
Connect to AGND.
Analog positive power supply.
External DC input for adjusting
the –2V power supply.
Connect external resistor that
determines the time interval (T
between master clock (MCLK)
rise and A/D converter clock
(A/D CLK) fall.
(Normally connect to 1.6k )
Connect to AGND.
Description
CXA1843Q
2
)