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PDF CXA1866Q Data sheet ( Hoja de datos )
| Número de pieza | CXA1866Q | |
| Descripción | 6-bit 140MSPS Flash A/D Converter | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXA1866Q
6-bit 140MSPS Flash A/D Converter
For the availability of this product, please contact the sales office.
Description
The CXA1866Q is a 6-bit ultra-high-speed flash
A/D converter IC capable of digitizing analog
signals at the maximum rate of 140MSPS. The
digital input level is compatible with ECL
100K/10KH/10K.
48 pin QFP (Plastic)
Features
• Ultra-high-speed operation with maximum
conversion rate of 140MSPS
• Low input capacitance: 7pF
• Wide analog input bandwidth: 210MHz
• Low power consumption: 325mW
• Low error rate
• Excellent temperature characteristics
• 1 : 2 demultiplexed output (TTL level)
Block Diagram
15
Structure
Bipolar silicon monolithic IC
Applications
• Magnetic recording (PRML)
• Communications (QPSK, QAM)
• Liquid crystal display
19 22
VRB 16
Reference Resistance Chain
21 VRT
COMPARATOR
INV 27
CCLK 26
NCCLK 25
CD
DCLK 11
NDCLK 12
CD
6bit Latch
6
CLatchA
CLatchB
66
TTLOUT
41 DVEE
23 AVEE
20 AGND
46 DGND1
45 DGND2
42 DGND3
47 DVCC1
48 DVCC2
7 6 5 4 3 2 35 34 33 32 31 30
CD; Clock Driver
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–
E93Z35B77
1 page  
CXA1866Q
Electrical Characteristics
(Ta = 25°C, AVEE = DVEE = –5.2V, DVCC = 5V, VRT = 0V, VRB = –2V)
Item Symbol Conditions
Min. Typ. Max. Unit
Resolution
n
6 bits
DC characteristics
Integral linearity error
EIL Fc = 140MHz
Differential linearity error EDL Fc = 140MHz
No missing code
±0.2
±0.2
Guaranteed
LSB
LSB
Analog input
Analog input capacitance CIN VIN = –1V + 0.07Vrms, DC ≤ VIN ≤ 70MHz
7
pF
Analog input resistance RIN –2V ≤ VIN ≤ 0V
200
kΩ
Input bias current
IIN –2V ≤ VIN ≤ 0V
110 µA
Reference input
Reference resistance
Reference resistance
current
Offset voltage VRT
VRB
RREF
Iref
EOT
EOB
225 Ω
9 mA
25 mV
25 mV
Digital input
Logic high level
Logic low level
Logic high current
Logic low current
Input capacitance
VIH
VIL
IIH VIH = –0.8V
IIL VIL = –1.6V
–1.13
V
–1.50 V
0 50 µA
–50 50 µA
3.5 pF
Switching characteristics
Maximum conversion
FC Error rate1E-9 TPS∗1
frequency
Aperture jitter
Taj
Sampling delay
Tds
140
5.0
1.0
MSPS
ps
ns
Digital output
Logic high level
Logic low level
Output delay
Output rising time
Output falling time
VOH
VOL
tdo
tr
tf
IOUT = –2mA
IOUT = 1mA
ZL = 25pF
ZL = 25pF, 0.5V to 2.4V
ZL = 25pF, 0.5V to 2.4V
2.7 V
0.5 V
2.0 8.0 ns
1.2 ns
1.2 ns
Dynamic characteristics
Analog amplitude
input bandwidth
S/N ratio
Error rate
Finb
SNR1
SNR2
SNR3
VIN = 2Vp-p,
p-p value = 3dB down input frequency
Fc = 140MHz, Fin = 1MHz
Fc = 140MHz, Fin = 35MHz
Fc = 140MHz, Fin = 70MHz
Fc = 140MHz, error > 4LSB
210
36
34
32
10–9
MHz
dB
dB
dB
TPS∗1
Power supply
Supply current
Power consumption
∗1 TPS: Times Per Sample
ICC
IEE
Pd
DVCC = +5V
AVEE = DVEE = –5.2V
20
–60 –40
325
32 mA
mA
mW
–5–
5 Page 
38
36
34
32
30
28
26
24
22
1
6.5
SNR vs. Input frequency
(CCLK = 140MHz, DCLK = 70MHz)
10
Input frequency [MHz]
100
Effective bit number vs. Input frequency
(CCLK = 140MHz, DCLK = 70MHz)
6.0
5.5
5.0
4.5
4.0
3.5
1
10
Input frequency [MHz]
100
2nd, 3rd Harmonic distortion vs. Input frequency
(CCLK = 140MHz, DCLK = 70MHz)
–20
2nd Harmonic distortion [dB]
3rd Harmonic distortion [dB]
–30
–40
–50
–60
–70
1
10
Input frequency [MHz]
100
– 11 –
CXA1866Q
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet CXA1866Q.PDF ] | |
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