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Número de pieza | CXA1396D | |
Descripción | 8-bit 125 MSPS Flash A/D Converter | |
Fabricantes | Sony Corporation | |
Logotipo | ||
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No Preview Available ! CXA1396D
8-bit 125 MSPS Flash A/D Converter
Description
The CXA1396D are 8-bit ultrahigh-speed flash A/D
converter ICs capable of digitizing analog signals at
the maximum rate of 125 MSPS. The digital I/O
levels of these A/D converters are compatible with
the ECL 100K/10KH/10K.
The CXA1396D is pin-compatible with the earlier
model CX20116. They can replace the earlier models
respectively, without any design changes, in most
cases. Compared with the earlier models, these new
models have been greatly improved in performance,
by incorporating advanced process, new circuit
design and carefully considered layout.
Features
• Ultrahigh-speed operation with maximum
conversion rate of 125 MSPS (Min.)
• Wide analog input bandwidth: 200MHz (Min. for
full-scale input)
• Low power consumption: 870mW (Typ.)
• Single power supply: –5.2V
• Low input capacitance
• Built-in integral linearity compensation circuit
• Low error rate
• Operable at 50% clock duty cycle
• Good temperature charactcristics
• Capable of driving 50Ω loads
42 pin DIP (Ceramic)
Structure
Bipolar silicon monolithic IC
Applications
• Digital oscilloscopes
• HDTV (high-definition TVs)
• Other apparatus requiring
conversion
ultrahigh-speed
A/D
Pin Configuration
Pins without name are NC pins (not connected).
AVEE 1
2
LINV 3
DVEE 4
DGND1 5
DGND2 6
(LSB) D0 7
D1 8
D2 9
D3 10
D4 11
D5 12
D6 13
(MSB) D7 14
DGND2 15
DGND1 16
DVEE 17
MINV 18
19
CLK 20
CLK 21
42
41 VRT
40
39 AVEE
38 AVEE
37
36
35 AGND
34 VIN
33 AGND
32 VRM
31 AGND
30 VIN
29 AGND
28
27
26 AVEE
25 AVEE
24
23 VRB
22
(Top View)
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E94521A79-PS
1 page CXA1396D
Pin No. Symbol
Standard
I/O voltage
level
7 D0
8 D1
9 D2
10 D3
O ECL
11 D4
12 D5
13 D6
14 D7
Equivalent circuit
DGND2
Description
LSB of data outputs.
External pull-down resistor is
required.
Di
Data outputs.
External pull-down resistors
are required.
MSB of data outputs.
DVEE
External pull-down resistor is
required.
DGND1
3 LINV I ECL
LINV
or
MINV
r
r
r
18 MINV
I
ECL
DVEE
r
Input pin for D0 (LSB) to D6
output polarity inversion (see
output code table).
With open connection, kept at
"L" level.
–1.3V
Input pin for D7(MSB) output
polarity inversion (see output
code table).
With open connection, kept at
"L" level.
VIN
30, 34 VIN
I
VRT
to
VIN
VRB
AGND
AVEE
Analog input pins.
These two pins must be
connected externally, since
they are not internally
connected.
See Application Note for
precautions.
–5–
5 Page CXA1396D
8-bit, 125MSPS ADC Evaluation board
Description
The CXA1396D EVALUATION BOARD WITH DAC is a tool for customers to evaluate the performance of the
CXA1396D (8-bit, 125MSPS, high-speed A/D converter). In addition to indispensable features such as the
reference voltage generator, this tool equips two sets of analog inputs (the direct input and the buffer amplifier
input), the input voltage offset generator, the clock decimator, the output data latches, the 10-bit high-speed
DAC, and the 20-pin cable connector for digital outputs.
This evaluation board provides full performance of the CXA1396D and it is designed to facilitate evaluation.
Features
• Resolution: 8bits
• Maximum conversion rate: 125MSPS
• Supply voltage: +5.0V, –5.2V, –2.0V
• Two analog inputs (Direct input, buffer amplifier input)
• Clock level converter: Sine wave to ECL level signal
• Reference voltage adjustment circuit for the A/D converter
• Built-in clock frequency decimation circuit: (1/1 to 1/16)
Fig. 1. Block Diagram
–5.2V (A)
VR2 VRB
(2k) –2V
HL
–5.2V (A)
VR1 Vin
(2k) OFFSET
AMP.IN
51
240
VR3
(1k)
1k
X (–2)
51
SW1
SW2
LINV MINV
VRB
J1
A VRM
8
CXA1396D
B
C Vin
CLK
D
DATA 8
LATCH
BUFFER
DIGITAL OUT
(CONNECTOR)
(D7 to D0)
8
CLK
(D7 to D0) 8
2 (CLK.CLK)
DIR.IN
CLK
0.1µ
+5V –5.2V (A) AGND
DECIMATOR
SW3
1/1 to 1/16
D/A
CONVERTER
CLK
D/A OUT
–5.2V (D) DGND –2V (D)
– 11 –
11 Page |
Páginas | Total 22 Páginas | |
PDF Descargar | [ Datasheet CXA1396D.PDF ] |
Número de pieza | Descripción | Fabricantes |
CXA1396D | 8-bit 125 MSPS Flash A/D Converter | Sony Corporation |
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