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ADA4830-2WBCPZ-R7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
Data Sheet ADA4830-1/ADA4830-2
Rev. C | Page 19 of 22
−
+
ADV7180
INN
VOUT
GND
INP
ADA4830-1
75Ω
+
STBENA +VS
4.7µF
0.1µF
0.1µF
21
25
24
23
19
3
14
30
22
18
A
IN
1
A
IN
2
A
IN
3
20
13
11
32
1
31
4
12
26
28
17
82nF
10nF
2
29
ELPF
27
ALSB
SCLK SCLK
DGND
DGND
SDA
SDATA
XTAL1
XTAL
0.1µF
+VS
ENABLE
(INPUT)
STB FLAG
(OUTPUT)
2.2µF
0.1µF
5kΩ
+V
S
(2.9V TO 5.5V)
VREF
D
VDDIO
0.1µF 10nF
A
VDD
_1.8V
0.1µF 10nF
0.1µF 10nF
D
VDD
_1.8V
D
VDD
_3.3V
D
VDDIO
P
VDD
_1.8V
P
VDD
_1.8V
D
VDD
_1.8V
A
VDD
_1.8V
0.1µF 10nF
KEEP VREFN AND VREFP CAPACITORS AS CLOSE AS
POSSIBLE TO THE ADV7180 AND ON THE SAME SIDE
OF THE PCB AS THE ADV7180.
LOCATE CLOSE TO, AND
ON THE SAME SIDE AS,
THE ADV7180
ALSB TIED HI
≥ I
2
C ADDRESS = 0x42
ALSB TIED LOW
≥ I
2
C ADDRESS = 0x40
RESET
RESET
P0
P1
P2
P3
P4
P5
P6
P7
P0
YCrCb
8-BIT
656 DATA
P[0:7]
P1
P2
P3
P4
P5
P6
P7
16
15
10
9
8
7
6
5
VREFN
DVDDIO
DVDD
DVDD
AVDD
PVDD
VREFP
28.63636MHz
47pF
47pF
1MΩ
4kΩ
LLC
1.69kΩ
INTRQ
SFL
VS/FIELD
EXTERNAL
LOOP FILTER
KEEP CLOSE TO THE ADV7180 AND ON
THE SAME SIDE OF PCB AS THE ADV7180.
HS
LLC
INTRQ
SFL
VS/FIELD
HS
10020-040
×1
Figure 41. ADA4830-1 Driving an ADV7180 Video Decoder
The ADA4830-1 and ADA4830-2 are differential receivers whose
overall performance is independent of the transmitter IC used
and whether the transmission line is ac-coupled or dc-coupled.
The ADA4830-1 and ADA4830-2 are specifically designed to
perform as differential line receivers. The circuit in Figure 41
shows a detailed schematic of the ADA4830-1 and the ADV7180
configured for this function. The signal is received differentially
relative to the common of the source circuitry, and that voltage
is exactly reproduced with an attenuating gain of 0.50 V/V. This
is designed to keep the video signal within the allowed range of
the video decoder, which is typically 1 V p-p or less.
The common-mode rejection vs. frequency, shown in Figure 14,
typically 65 dB at low frequencies, enables the recovery of video
signals in the presence of large common-mode noise. The high
input impedance permits the ADA4830-1 and ADA4830-2 to
operate as a bridging amplifier across low impedance terminations
with negligible loading.
ADA4830-1/ADA4830-2 Data Sheet
Rev. C | Page 20 of 22
FULLY DC-COUPLED TRANSMISSION LINE
The wide input common-mode range and high input impedance of
the ADA4830-1 and ADA4830-2 allow them to be used in fully
dc-coupled transmission line applications in which there may be a
significant discrepancy between voltage levels at the ground pins of
the driver and receiver. As long as the voltage difference between
reference levels at the transmitter and receiver is within the
common-mode range of the receiver, very little current flow
results, and no image degradation should be anticipated.
Figure 42 shows an example configuration of a completely dc-
coupled transmission using a low impedance differential driver.
R
T
+V
S
INN
VOUT
TO VIDEO
DECODER
GND
INP
ADA4830-1
75Ω
−
+
GND
LPF
LPF
+
+
STBENA +VS
4.7µF
0.1µF
+VS
ENABLE
(INPUT)
STB FLAG
(OUTPUT)
2.2µF
0.1µF
5kΩ
+V
S
(2.9V TO 5.5V)
STBENA +VS
ENABLE
(INPUT)
STB FLAG
(OUTPUT)
2.2µF
0.1µF
+V
S
(2.7V TO 3.6V)
VREF
+IN
–IN
–OUT
+OUT
−
+
75Ω
TWISTED
PAIR
37.5Ω
37.5Ω
FROM
IMAGER
OR VIDEO
ENCODER
×1
10020-041
Figure 42. Differential Video Filter Driver and ADA4830-1 Difference Amplifier
Data Sheet ADA4830-1/ADA4830-2
Rev. C | Page 21 of 22
PACKAGING AND ORDERING INFORMATION
OUTLINE DIMENSIONS
2.44
2.34
2.24
TOP VIEW
8
1
5
4
0.30
0.25
0.20
BOTTOM VIEW
PIN 1 INDEX
AREA
SEATING
PLANE
0.80
0.75
0.70
1.70
1.60
1.50
0.203 REF
0.05 MAX
0.02 NOM
0.50 BSC
EXPOSED
PAD
3.10
3.00 SQ
2.90
PIN 1
INDICATOR
(R 0.15)
FOR PROPER CONNECTION OF
THE EXPOSED PAD, REFER TO
THE PIN CONFIGURATION AND
FUNCTION DESCRIPTIONS
SECTION OF THIS DATA SHEET.
COPLANARITY
0.08
0.50
0.40
0.30
COMPLIANT
TO
JEDEC STANDARDS MO-229-WEED
01-24-2011-B
Figure 43. 8-Lead Lead Frame Chip Scale Package [LFCSP_WD]
3 mm × 3 mm Body, Very Very Thin, Dual Lead
(CP-8-11)
Dimensions shown in millimeters
3.10
3.00 SQ
2.90
0.30
0.23
0.18
1.75
1.60 SQ
1.45
08-16-2010-E
1
0.50
BSC
BOTTOM VIEWTOP VIEW
16
5
8
9
12
13
4
EXPOSED
PAD
PIN 1
INDICATOR
0.50
0.40
0.30
SEATING
PLANE
0.05 MAX
0.02 NOM
0.20 REF
0.25 MIN
COPLANARITY
0.08
PIN 1
INDICATOR
FOR PROPER CONNECTION OF
THE EXPOSED PAD, REFER TO
THE PIN CONFIGURATION AND
FUNCTION DESCRIPTIONS
SECTION OF THIS DATA SHEET.
0.80
0.75
0.70
COMPLIANT
TO
JEDEC STANDARDS MO-220-WEED-6.
Figure 44. 16-Lead Lead Frame Chip Scale Package [LFCSP_WQ]
3 mm × 3 mm Body, Very Very Thin Quad
(CP-16-22)
Dimensions shown in millimeters
ORDERING GUIDE
Model
1, 2
Temperature Range Package Description
Package
Option Branding
Ordering
Quantity
ADA4830-1BCP-EBZ Evaluation Board
ADA4830-1BCPZ-R7 −40°C to +125°C 8-Lead Lead Frame Chip Scale Package [LFCSP_WD] CP-8-11 H30 1500
ADA4830-1WBCPZ-R7
−40°C to +125°C
8-Lead Lead Frame Chip Scale Package [LFCSP_WD]
CP-8-11
4H1
1500
ADA4830-1BCPZ-R2 −40°C to +125°C 8-Lead Lead Frame Chip Scale Package [LFCSP_WD] CP-8-11 H30 250
ADA4830-2BCPZ-R7 −40°C to +125°C 16-Lead Lead Frame Chip Scale Package [LFCSP_WQ] CP-16-22 H31 1500
ADA4830-2BCPZ-R2 −40°C to +125°C 16-Lead Lead Frame Chip Scale Package [LFCSP_WQ] CP-16-22 H31 250
ADA4830-2WBCPZ-R7 −40°C to +125°C 16-Lead Lead Frame Chip Scale Package [LFCSP_WQ] CP-16-22 4H2 1500
1
Z = RoHS Compliant Part.
2
W = Qualified for Automotive Applications.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

ADA4830-2WBCPZ-R7

Mfr. #:
Buy ADA4830-2WBCPZ-R7
Manufacturer:
Analog Devices Inc.
Description:
Differential Amplifiers High Spd 18V Shrt Bat Protect Diff AMP
Lifecycle:
New from this manufacturer.
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