Sony CXD3408GA Datasheet

CXD3408GA
Timing Generator and Signal Processor for Frame Readout CCD Image Sensor
Description
The CXD3408GA is a timing generator and CCD
signal processor IC for the ICX406 CCD image sensor.
Features
Timing generator functions
(base oscillation frequency 36MHz)
Supports frame readout/draft (quadruple speed) /AF (auto-focus)
High-speed/low-speed shutter function
Horizontal and vertical drivers for CCD image
sensor
CCD signal processor functions
Correlated double sampling
Programmable gain amplifier (PGA) allows gain
adjustment over a wide range (–6 to +42dB)
10-bit A/D converter
Chip Scale Package (CSP):
CSP allows vast reduction in the CCD camera block footprint
Applications
Digital still cameras
Structure
Silicon gate CMOS IC
Applicable CCD Image Sensors
ICX406 (1/1.8", 3980K pixels)
Absolute Maximum Ratings
Supply voltage
V
DDa, VDDb, VDDc, VDDdVSS – 0.3 to +7.0 V
VDDe, VDDf, VDDgVSS – 0.3 to +4.0 V
VL –10.0 to VSS V VH VL – 0.3 to +26.0 V
Input voltage (analog) V
IN VSS – 0.3 to VDD + 0.3 V
Input voltage (digital) VI VSS – 0.3 to VDD + 0.3 V
Output voltage VO1 VSS – 0.3 to VDD + 0.3 V VO2 VL – 0.3 to VSS + 0.3 V V
O3 VL – 0.3 to VH + 0.3 V
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –55 to +125 °C
Recommended Operating Conditions
Supply voltage
V
DDb 3.0 to 5.25 V
VDDa, VDDc, VDDd, VDDe, VDDf, VDDg
3.0 to 3.6 V VM 0.0 V VH 14.5 to 15.5 V VL –7.0 to –8.0 V
Operating temperature Topr –20 to +75 °C
– 1 –
E01341A26
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.
96 pin LFLGA (Plastic)
– 2 –
CXD3408GA
Block Diagram
C7
C3
A1NCA2
NC
D8C2D7C1B8
AVDD3B6AVDD4B9AVSS3A6AVSS4C5AVSS5A3SCK2A4SSI2B4SEN2A5TEST3C4TEST4B5TEST5E2DVDD1F2DVSS3F3DVDD2E3DVSS1
F1
B3
DVSS2
D0 (LSB)
Latch
Serial Port
Register
DAC
PGACDS ADC
Preblanking
Dummy Pixel
Auto Zero
Pulse Generator
V Driver
Serial Port
Register
SSG
Black Level
Auto Zero
B2
D1
B1
D2
C3
D3
C2
D4
C1
D5
D3
D6
D2
D7
D1
D8
E1
D9 (MSB)
G1
ADCLKI
G2
CLPOBI
G3
CLPDMI
L3
V
SS4
H1
ADCLK
H2
CLPOB
H3
CLPDM
J3
V
SS5
L1
OSCI
K1
OSCO
J1
CKI
J2
CKO
K2
MCKO
N8
SNCSL
L2
SSI1
M6
VL
L4
VM
M5
VH
M9
WEN
N9
ID/EXP
J7
V
SS3
J9
H2
J8
H1
H9
V
DD3
K9
V
SS2
K8
RG
K7
V
DD2
H8
V
DD4
H7
XRS
G7
PBLK
G8
XSHD
G9
XSHP
F7
PBLKI
F8
XSHDI
E7
AV
SS2
F9
XSHPI
D9
AV
SS1
E8
AV
DD2
E9
AV
DD1
C9
CCDIN
C6
C9
A7
C8
B7
C7
A8
AV
SS6
A9
AV
DD5
C8
C4
M1
SCK1
N1
SEN1
N3
VSS6
L7
VSS1
K3
VDD5
L9
VDD1
M2
VD
N2
HD
N7
SUB
N4
V4
N6
V3B
V3A
L6
V2
M4N5
V1B
M7
TEST2
M3
TEST1
M8
RST
L8
SSGSL
L5
V1A
Selector
Latch
Selector
1/2
– 3 –
CXD3408GA
Pin Configuration (Top View)
NC
D2
D5
D8
D9
DV
SS2
ADCLKI
ADCLK
CKI
OSCO
OSCI
SCK1
SEN1
A
B
C
D
E
F
G
H
J
K
L
M
N
NC
D1
D4
D7
DV
DD1
DVSS3
CLPOBI
CLPOB
CKO
MCKO
SSI1
VD
HD
SCK2
D0
D3
D6
DV
SS1
DVDD2
CLPDMI
CLPDM
VSS5
VDD5
VSS4
TEST1
V
SS6
SSI2
SEN2
TEST4
VM
V2
V4
TEST3
TEST5
AVSS5
V1A
VH
V1B
AV
SS4
AVDD4
C9
V3A
VL
V3B
C8
C7
C3
C1
AV
SS2
PBLKI
PBLK
XRS
VSS3
VDD2
VSS1
TEST2
SUB
AVSS6
AVDD3
C4
C2
AV
DD2
XSHDI
XSHD
V
DD4
H1
RG
SSGSL
RST
SNCSL
AV
DD5
AVSS3
CCDIN
AV
SS1
AV
DD1
XSHPI
XSHP
V
DD3
H2
V
SS2
VDD1
WEN
ID/EXP
123456789
– 4 –
CXD3408GA
Pin Description
No connected. (Open) No connected. (Open) CCD signal processor block serial interface clock input. (Schmitt trigger) CCD signal processor block serial interface data input. (Schmitt trigger) CCD signal processor block test input 3. Connect to DVSS. CCD signal processor block analog GND. Capacitor connection. CCD signal processor block analog GND. CCD signal processor block analog power supply. ADC output. ADC output. ADC output (LSB). CCD signal processor block serial interface enable input. (Schmitt trigger) CCD signal processor block test input 5. Connect to DVDD. CCD signal processor block analog power supply. Capacitor connection. CCD signal processor block analog power supply. CCD signal processor block analog GND. ADC output. ADC output. ADC output. CCD signal processor block test input 4. Connect to DVSS. CCD signal processor block analog GND. Capacitor connection. Capacitor connection. Capacitor connection. CCD output signal input. ADC output. ADC output. ADC output. Capacitor connection. Capacitor connection. CCD signal processor block analog GND. ADC output (MSB). CCD signal processor block digital power supply. (Power supply for ADC)
A1 A2 A3 A4 A5 A6 A7 A8 A9 B1 B2 B3 B4 B5 B6 B7 B8
B9 C1 C2 C3 C4 C5 C6 C7 C8 C9 D1 D2 D3 D7 D8 D9 E1 E2
NC NC SCK2 SSI2 TEST3 AVSS4 C8 AVSS6 AVDD5 D2 D1 D0 SEN2 TEST5 AVDD4 C7 AVDD3 AVSS3 D5 D4 D3 TEST4 AVSS5 C9 C3 C4 CCDIN D8 D7 D6 C1 C2 AVSS1 D9 DVDD1
— —
I I I
— — — —
O O O
I I
— — — —
O O O
I
— — — —
I O O O
— — —
O
Pin
No.
Symbol I/O Description
– 5 –
CXD3408GA
CCD signal processor block digital GND. CCD signal processor block analog GND. CCD signal processor block analog power supply. CCD signal processor block analog power supply. CCD signal processor block digital GND. CCD signal processor block digital GND. CCD signal processor block digital power supply. Pulse input for horizontal and vertical blanking period pulse cleaning. (Schmitt trigger) CCD data level sample-and-hold pulse input. (Schmitt trigger) CCD precharge level sample-and-hold pulse input. (Schmitt trigger) Clock input for analog/digital conversion. (Schmitt trigger) CCD optical black signal clamp pulse input. (Schmitt trigger) CCD dummy signal clamp pulse input. (Schmitt trigger) Pulse output for horizontal and vertical blanking period pulse cleaning. CCD data level sample-and-hold pulse output. CCD precharge level sample-and-hold pulse output. Clock output for analog/digital conversion. CCD optical black signal clamp pulse output. CCD dummy signal clamp pulse output. Sample-and-hold pulse output for analog/digital conversion phase alignment. Timing generator block digital power supply. (Power supply for CDS block) Timing generator block 3.0 to 5.0V power supply. (Power supply for H1/H2) Inverter input. Inverter output. Timing generator block digital GND. Timing generator block digital GND. CCD horizontal register clock output. CCD horizontal register clock output. Inverter output for oscillation. When not used, leave open or connect a capacitor. System clock output for signal processor IC. Timing generator block digital power supply. (Power supply for common logic block) Timing generator block digital power supply. (Power supply for RG) CCD reset gate pulse output. Timing generator block digital GND. Inverter input for oscillation. When not used, fix to low.
E3 E7 E8 E9
F1 F2 F3 F7 F8
F9 G1 G2 G3 G7 G8 G9 H1 H2 H3 H7 H8 H9
J1
J2
J3
J7
J8
J9 K1 K2 K3 K7 K8 K9
L1
DVSS1 AVSS2 AVDD2 AVDD1 DVSS2 DVSS3 DVDD2 PBLKI XSHDI XSHPI ADCLKI CLPOBI CLPDMI PBLK XSHD XSHP ADCLK CLPOB CLPDM XRS VDD4 VDD3 CKI CKO VSS5 VSS3 H1 H2 OSCO MCKO VDD5 VDD2 RG VSS2 OSCI
— — — — — — —
I I I I I
I O O O O O O O
— —
I O
— —
O O O O
— —
O
I
Pin
No.
Symbol I/O Description
– 6 –
CXD3408GA
Timing generator block serial interface data input. Schmitt trigger input/No protective diode on power supply side.
Timing generator block digital GND. Timing generator block digital GND. (GND for vertical driver) CCD vertical register clock output. CCD vertical register clock output. Timing generator block digital GND. Internal SSG enable.
High: Internal SSG valid, Low: External sync valid (With pull-down resistor) Timing generator block digital power supply. (Power supply for common logic block) Timing generator block serial interface clock input.
Schmitt trigger input/No protective diode on power supply side. Vertical sync signal input. Timing generator block test input 1.
Normally fix to GND. (With pull-down resistor) CCD vertical register clock output. Timing generator block 15.0V power supply. (Power supply for vertical driver) Timing generator block –7.5V power supply. (Power supply for vertical driver) Timing generator block test input 2.
Normally fix to GND. (With pull-down resistor) Timing generator block reset input.
High: Normal operation, Low: Reset control Normally apply reset during power-on. Schmitt trigger input/No protective diode on power supply side
Memory write timing pulse output. Timing generator block serial interface strobe input.
Schmitt trigger input/No protective diode on power supply side Horizontal sync signal input. Timing generator block digital GND. CCD vertical register clock output. CCD vertical register clock output. CCD vertical register clock output. CCD electronic shutter pulse output. Control input used to switch sync system.
High: CKI sync, Low: MCKO sync (With pull-down resistor) Vertical direction line identification pulse output/exposure time identification pulse
output. Switching possible using the serial interface data. (Default: ID)
L2 L3
L4 L5 L6 L7
L8
L9 M1 M2 M3 M4
M5 M6
M7
M8
M9
N1 N2
N3 N4 N5 N6 N7
N8
N9
SSI1 VSS4
VM V1A V3A VSS1
SSGSL VDD1 SCK1 VD TEST1 V2
VH VL
TEST2
RST
WEN SEN1 HD
VSS6 V4 V1B V3B SUB
SNCSL
ID/EXP
I
— —
O O
I
I I I
O
— —
I
I
O
I I
O O O O
I
O
Pin No.
Symbol I/O Description
– 7 –
CXD3408GA
Electrical Characteristics
Timing Generator Block Electrical Characteristics DC Characteristics (Within the recommended operating conditions)
VDD2 VDD3 VDD4 VDD1, VDD5
RST, SCK1, SSI1, SEN1
TEST1, TEST2 SNCSL, SSGSL
VD, HD
H1, H2
RG
XSHP, XSHD, XRS, PBLK, CLPOB, CLPDM, ADCLK
CKO
MCKO
ID/EXP, WEN
V1A, V1B, V3A, V3B, V2, V4
SUB
V
DDa
VDDb VDDc VDDd
VIH1 VIL1 VIH2 VIL2 VOH1 VOL1 VOH2 VOL2 VOH3 VOL3
VOH5 VOL5 VOH6 VOL6 VOH7 VOL7 IOL IOM1 IOM2 IOH IOSL IOSH
3.0
3.0
3.0
3.0
0.7VDDd
0.8VDDd
VDDd – 0.8
VDDb – 0.8
VDDa – 0.8
VDDd – 0.8
VDDd – 0.8
VDDd – 0.8
10.0
5.0
5.4
3.3
3.3
3.3
3.3
3.6
5.25
3.6
3.6
0.3VDDd
0.2VDDd
0.4
0.4
0.4
0.4
0.4
0.4
5.0
7.2
4.0
V V V V
V V V V V V V V V V
V V V V V
V mA mA mA mA mA mA
Feed current where I
OH = –1.2mA
Pull-in current where IOL = 2.4mA Feed current where IOH = –22.0mA Pull-in current where IOL = 14.4mA Feed current where IOH = –3.3mA Pull-in current where IOL = 2.4mA
Feed current where IOH = –6.9mA Pull-in current where IOL = 4.8mA Feed current where IOH = –3.3mA Pull-in current where IOL = 2.4mA Feed current where IOH = –2.4mA Pull-in current where IOL = 4.8mA V1A/B, V2, V3A/B, V4 = –8.25V V1A/B, V2, V3A/B, V4 = –0.25V V1A/B, V3A/B = 0.25V V1A/B, V3A/B = 14.75V SUB = –8.25V SUB = 14.75V
Supply voltage 1 Supply voltage 2 Supply voltage 3 Supply voltage 4
Input voltage 1
1
Input voltage 2
2
Input/Output voltage
Output voltage 1
Output voltage 2
Output voltage 3
Output voltage 4
Output voltage 5
Output voltage 6
Output current 1
Output current 2
Item Pins Symbol Conditions Min. Typ. Max. Unit
V
V
0.8V
DD
d
V
I+
VI –
0.2VDDd
1
This input pin is a schmitt trigger input and it does not have protective diode of the power supply side in the IC.
2
These input pins are with pull-down resistor in the IC.
Note) This table indicates conditions at 3.3V drive.
V
OH4
Feed current where IOH = –3.3mA
V
DDc – 0.8
V
V
OL4
Pull-in current where IOL = 2.4mA
0.4
V
– 8 –
CXD3408GA
Inverter I/O Characteristics for Oscillation (Within the recommended operating conditions)
Item
Logical Vth Input
voltage Output
voltage Feedback
resistor Oscillation
frequency
Pins
OSCI
OSCI
OSCO
OSCI, OSCO
OSCI, OSCO
Symbol
LVth V
IH
VIL VOH VOL
RFB
f
Conditions
Feed current where IOH = –3.6mA Pull-in current where IOL = 2.4mA
VIN = VDDd or VSS
Min.
0.7V
DDd
V
DDd – 0.8
500k
20
Typ.
V
DDd/2
2M
Max.
0.3VDDd
0.4 5M
50
Unit
V V V V V
MHz
Item
Logical Vth Input
voltage Input
amplitude
Pins
CKI
Symbol
LVth V
IH
V
IL
VIN
Conditions
fmax 50MHz sine wave
Min.
0.7V
DDd
0.3
Typ.
VDDd/2
Max.
0.3VDDd
Unit
V V V
Vp-p
Item
Rise time
Fall time
Output noise voltage
Symbol
TTLM TTMH TTLH TTML TTHM TTHL VCLH VCLL VCMH VCML
Conditions
VL to VM VM to VH VL to VH VM to VL VH to VM VH to VL
Min.
200 200
30 200 200
30
Typ.
350 350
60 350 350
60
Max.
500 500
90 500 500
90
1.0
1.0
1.0
1.0
Unit
ns ns ns ns ns ns
V V V V
Inverter Input Characteristics for Base Oscillation Clock Duty Adjustment
(Within the recommended operating conditions)
Note) Input voltage is the input voltage characteristics for direct input from an external source. Input amplitude
is the input amplitude characteristics in the case of input through a capacitor.
Switching Characteristics (VH = 15.0V, VM = GND, VL = –7.5V)
Notes)
1. The MOS structure of this IC has a low tolerance for static electricity, so full care should be given for measures to prevent electrostatic discharge.
2. For noise and latch-up countermeasures, be sure to connect a by-pass capacitor (0.1µF or more) between each power supply pin (VH, VL) and GND.
3. To protect the CCD image sensor, clamp the SUB pin output at VH before input to the CCD image sensor.
– 9 –
CXD3408GA
Switching Waveforms
V1A (V1B, V3A, V3B)
V2 (V4)
SUB
TTMH TTHM
VH
VM
VL
VM
VL
VH
VL
90%
10%
90%
10%
TTLM
TTLM
90%
10%
90%
10%
TTLH TTHL
90%90%
10% 10%
TTML
90%
10%
TTML
90%
10%
Waveform Noise
VCMH
VCML
VM
VL
VCLH
VCLL
– 10 –
CXD3408GA
Measurement Circuit
N1
N2
L4
L5
L6N7L7
N8
N9
M1M2M3
N4N5N6
M4
N3 L2 K2 K9 K8 K7 K1 L1 K3 J9 J8 J7 J3 J2 J1 H9 H8 H7 H3 H2 L3 G9 G8 G7
A2 A1 A3 A4 A5 A6 A7 A8 A9 B1 B2 B3 B4 B5 B6 B7 B9 B8 C1 C2 C3 C4 C5 C6
M5
M6
E1
L8
L9
M7M8M9
E8
D8
D7
D3D2D1C9C8
C7
F3
F2
G1
E9D9E7
G3
G2
H1
F9F8F7
F1
E3
E2
VD
CXD3408GA
V2VHVLD9SSGSL
V
DD1
SCK1VDTEST1V4V1B
V3B
TEST2
RST
WEN
SEN1HDVM
V1A
V3A
SUB
V
SS1
SNCSL
ID/EXP
CLPDMI
CLPOBI
ADCLK
XSHPI
XSHDI
PBLKI
DV
DD2
DVSS3
ADCLKI
AV
DD1
AVSS1
AVSS2
DVSS2
DVSS1
DVDD1
AVDD2
C2C1D6D7D8
CCDIN
C4
C3
VSS6
SSI1
MCKO
V
SS2
RG
V
DD2
OSCO
OSCI
V
DD5
H2
H1
V
SS3
VSS5
CKO
CKI
V
DD3
VDD4
XRS
CLPDM
CLPOB
V
SS4
XSHP
XSHD
PBLK
NC
NC
SCK2
SSI2
TEST3
AV
SS4
C8
AV
SS6
AVDD5
D2
D1
D0
SEN2
TEST5
AV
DD4
C7
AV
SS3
AVDD3
D5
D4
D3
TEST4
AV
SS5
C9
Serial interface data
HD
+3.3V
+15.0V
–7.5V
C2
C2 C2
C2
C2
R1
R1
R1
R2
R1
R1 R1
C2
C2
C2
C2
C2
C2
C2
C2
C2
C1
C1
C1
C1
C1
C1
C2
C3
CKI
C6 C4 C5 C5 C6 C6
C1 3300pF C2 560pF C3 820pF C4 8pF C5 180pF C6 10pF
R1 30 R2 10
– 11 –
CXD3408GA
AC Characteristics
AC characteristics between the serial interface clocks
SSI1
0.2V
DDd
0.2VDDd
0.8V
DDd
ts2
th1ts1
ts3
0.8V
DDd
0.8V
DDd
SCK1
SEN1
SEN1
Symbol
ts1 th1 ts2 ts3
Definition SSI1 setup time, activated by the rising edge of SCK1 SSI1 hold time, activated by the rising edge of SCK1 SCK1 setup time, activated by the rising edge of SEN1 SEN1 setup time, activated by the rising edge of SCK1
Min. Typ. Max.
20 20 20 20
Unit
ns ns ns ns
Serial interface clock internal loading characteristics (1)
(Within the recommended operating conditions)
th1
Enlarged view
Example: During frame mode
0.2V
DDd
ts1
0.2V
DDd
V1A
VD
HD
HD
V1A
SEN1
0.8V
DDd
Symbol
t
s1
t
h1
Definition SEN1 setup time, activated by the falling edge of HD SEN1 hold time, activated by the falling edge of HD
Min. Typ. Max.
0
110
Unit
ns
µs
Be sure to maintain a constantly high SEN1 logic level near the falling edge of the HD in the horizontal period during which V1A/B and V3A/B values take the ternary value and during that horizontal period.
(Within the recommended operating conditions)
– 12 –
CXD3408GA
Serial interface clock output variation characteristics
Normally, the serial interface data is loaded to the CXD3408GA at the timing shown in "Serial interface clock internal loading characteristics (1)" above. However, one exception to this is when the data such as STB is loaded to the CXD3408GA and controlled at the rising edge of SEN1. See "Description of Operation".
0.8VDDd
SEN1
Output signal
tpdPULSE
Symbol
tpdPULSE
Definition
Output signal delay, activated by the rising edge of SEN1
Min. Typ. Max.
1005
Unit
ns
(Within the recommended operating conditions)
Serial interface clock internal loading characteristics (2)
th1
0.2VDDd
ts1
0.2V
DDd
VD
HD
VD
HD
SEN1
0.8V
DDd
Enlarged view
Example: During frame mode
Symbol
ts1 th1
Definition
SEN1 setup time, activated by the falling edge of VD SEN1 hold time, activated by the falling edge of VD
Min. Typ. Max.
0
200
Unit
ns ns
Be sure to maintain a constantly high SEN1 logic level near the falling edge of VD.
(Within the recommended operating conditions)
– 13 –
CXD3408GA
RST
0.2VDDd tw1
0.8VDDd
VD
HD
ts1
th1
0.2V
DDd
0.2V
DDd
0.2V
DDd
RST loading characteristics
Symbol
tw1
Definition
RST pulse width
Min. Typ. Max.25Unit
ns
(Within the recommended operating conditions)
VD and HD phase characteristics
Symbol
t
s1
t
h1
Definition VD setup time, activated by the falling edge of HD VD hold time, activated by the falling edge of HD
Min. Typ. Max.
20
100
Unit
ns ns
(Within the recommended operating conditions)
HD
MCKO
ts1
th1
0.2VDDd
0.8V
DDd
0.2VDDd
HD loading characteristics
Symbol
ts1 th1
Definition HD setup time, activated by the rising edge of MCKO
HD hold time, activated by the rising edge of MCKO
Min. Typ. Max.
20
5
Unit
ns ns
MCKO load capacitance = 10pF
(Within the recommended operating conditions)
– 14 –
CXD3408GA
0.8VDDd
MCKO
WEN, ID/EXP
tpd1
WEN and ID/EXP load capacitance = 10pF
(Within the recommended operating conditions)
Symbol
tpd1
Definition
Time until the above outputs change after the rise of MCKO
Min. Typ. Max.
6020
Unit
ns
Output variation characteristics
– 15 –
CXD3408GA
CCD Signal Processor Block Electrical Characteristics
DC Characteristics (Fc = 18MSPS, DVDD1, 2 = AVDD1, 2, 3, 4, 5 = 3.3V, Ta = 25°C)
Item Supply voltage 1 Supply voltage 2
Supply voltage 3
Analog input capacitance
Input voltage
A/D clock duty
Output voltage
Pins DVDD1 DVDD2 AVDD1,
AVDD2, AVDD3, AVDD4, AVDD5
CCDIN SCK2, SSI2,
SEN2, TEST3, TEST4, XSHDI, XSHPI, ADCLKI, CLPOBI, CLPDMI, PBLKI
ADCLKI
D0 to D9
Symbol
VDDe VDDf
VDDg
CIN VI +
VI –
VOH VOL
Conditions
Feed current where I
OH = –2.0mA
Pull-in current where IOL = 2.0mA
Min.
3.0
3.0
3.0
VDDe – 0.9
Typ.
3.3
3.3
3.3
15
1.8
1.1
50
Max.
3.6
3.6
3.6
0.4
Unit
V V
V
pF
V
V
%
V V
Analog Characteristics (Fc = 18MSPS, DVDD1, 2 = AVDD1, 2, 3, 4, 5 = 3.3V, Ta = 25°C)
Item CCDIN input voltage amplitude PGA maximum gain PGA minimum gain ADC resolution ADC maximum conversion rate ADC integral non-linearity error ADC differential non-linearity error
Signal-to-noise ratio
CCDIN input voltage clamp level CCD optical black signal clamp
level
Symbol
V
IN
Gmax Gmin
Fc max EL ED
SNR
1
CLP OB
Conditions PGA gain = 0dB, output full scale PGA gain setting data = "3FFh" PGA gain setting data = "000h"
PGA gain = 0dB PGA gain = 0dB CCDIN input connected to GND
via a coupling capacitor PGA gain = 0dB
OBLVL = "8h" PGA gain = 0dB
Min.
900
18
Typ.
42 –6 10
±1.0 ±0.5
62
1.5 32
Max. 1100
±5.0 ±1.0
Unit
mV
dB dB bit
MHz
LSB LSB
dB
V
LSB
1
SNR = 20 log (full-scale voltage/rms noise)
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