參數(shù)資料
型號(hào)： AD8264-EVALZ
廠商： Analog Devices Inc
文件頁數(shù)： 38/40頁
文件大?。?/td> 0K
描述： BOARD EVAL FOR AD8264 VGA
標(biāo)準(zhǔn)包裝： 1
每 IC 通道數(shù)： 4 - 四
放大器類型： 可變?cè)鲆?br>
輸出類型： 差分
轉(zhuǎn)換速率： 380 V/µs
-3db帶寬： 235MHz
工作溫度： -40°C ~ 105°C
電流供應(yīng)（主 IC）： 99mA
電壓 - 電源，單路/雙路(±)： ±2.5 V ~ 5 V
板類型： 完全填充
已供物品： 板
已用 IC / 零件： AD8264
AD8264
Rev. A | Page 7 of 40
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
IPP2
OPP3
IPN3
IPP3
8
7
6
5
1
4
3
2
29
30
31
32
28
34 33
27
CO
M
IPP1
IPN2
IPN1
OPP1
OPP2
G
NH1
G
NH2
14
13
17
12
11
18
VOH3
VGA3
VOL3
15 16
20
37
35
19
VOH1
VN
EG
GN
LO
VOH2
21
22
23
24
VGA2
VOL2
VOL1
OFS
1
PIN1
INDICATOR
AD8264
TOP VIEW
(Not to Scale)
VPO
S
IPN4
OPP4
10
9
38
39
OFS
3
VOL4
VOH4
36
40
25
26
OFS
2
V
G
A1
V
G
A4
OFS
4
VN
EG
VPO
S
V
O
CM
G
NH3
G
NH4
CO
M
IPP4
NOTES
1. EXPOSED PADDLE (PIN 0) NEEDS AN ELECTRICAL
CONNECTION TO GROUND. FOR PROPER RF GROUNDING
AND INCREASED RELIABILITY, THE PAD MUST BE
CONNECTED TO THE GROUND PLANE.
07736-
003
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
0 (EP), 12, 39
COMM
Ground. Exposed paddle (EP, Pin 0) needs an electrical connection to ground. For proper RF grounding
and increased reliability, the pad must be connected to the ground plane.
1, 4, 7, 10
IPN1, IPN2,
IPN3, IPN4
Negative Preamp Inputs for Channel 1 Through Channel 4. Normally, no external connection is needed.
2, 3, 8, 9
OPP1, OPP2,
OPP3, OPP4
Preamp Output for Channel 1 Through Channel 4. This pin is internally connected to the attenuator
(VGA) input, and normally, no external connection is needed.
5, 6, 11, 40
IPP1, IPP2,
IPP3, IPP4
Positive Preamp Input for Channel 1 Through Channel 4. High impedance.
13, 14, 37, 38
GNH1, GNH2,
GNH3, GNH4
Positive Gain Control Voltage Input for Channel 1 Through Channel 4. This pin is referenced to GNLO (Pin 36).
15
VOCM
This pin sets the differential output amplifier (VOHx and VOLx) common-mode voltage.
16, 35
VPOS
Positive Supply (Internally Tied Together).
17, 34
VNEG
Negative Supply (Internally Tied Together).
18, 19, 32, 33
OFS1, OFS2,
OFS3, OFS4
Voltage sets the differential output offset for Channel 1 through Channel 4. This is the noninverting input
to the differential amplifier, and it has the same bandwidth as the inverting input (VGAx).
20, 25, 26, 31
VGA4, VGA3
VGA2, VGA1
VGA Output for Channel 1 Through Channel 4.
21, 24, 27, 30
VOL1, VOL2
VOL3, VOL4
Negative Differential Amplifier Output for Channel 1 Through Channel 4.
22, 23, 28, 29
VOH1, VOH2,
VOH3, VOH4
Positive Differential Amplifier Output for Channel 1 Through Channel 4.
36
GNLO
Negative Gain Control Input (Reference for GNHx Pins).
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