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| 型號： | BRICHURE |
| 英文描述： | Brichure - Communications. Video & Imaging - High Speed Solutions Brochure |
| 中文描述： | Brichure -通信。視頻 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 642K |
| 代理商： | BRICHURE |
+12V
Transformer
and
Hybrid
OP1/2
+12V
V
REF
V
REF
1/2
OPA2681
1/2
OPA2680
1/2
OPA2680
LP
FIlter
TX+
TX–
RX+
RX–
DSP
BP
FIlter
AFE1203 & AFE1205
The
AFE1203
and
AFE1205
are analog front ends optimized for
single pair 2B1Q HDSL and MDSL applications. They have a
power control feature which allows the user to reduce power
dissipation. Both include DSL transmit and receive channels, and
are designed for data rates up to 2.3Mbps.
See Figure 4.
Features
385mW Power Dissipation
User Power Control
Scaleable Data Rate
48-Pin SSOP
www.burr-brown.com
Recommended resale in USD; FOB USA
.
DSL Line Driver/Receiver Application
This application circuit supports DSL applications at the CP
(Customer Premises) requiring 10 to 13dBm (crest factor of
5.33 for DMT) on a single +12V supply. The
OPA2681
has the
right combination of output swing, output current and slew rate
at high gains to achieve low distortion at the required power
levels. The
OPA2680
makes an excellent receiver amplifier
because of its low noise, high bandwidth and slew rate
performance margins. Where +12V or ±5V supplies are
available, and/or lower turns ratios are desired, use the
OPA2681/OPA2680.
See Figure 6.
AFE1203
Fig. 4
In+
In–
Out+
+5V
G = 3V/V
Patent
Pending
GND
Out–
Transformer
DRV110
DRV1101
DRV1100 & DRV1101—Line Drivers
The
DRV1100
is a low power, fixed gain differential line driver
designed for very low harmonic distortion at the high power
required of DSL line interface standards. The DRV1100 operates
from a single +5V supply and can deliver 230mA peak output
current and 9.5Vp-p differential output voltage swing.
The
DRV1101
is a fixed gain differential line driver designed for
use as the upstream line driver for single +5V only ADSL G.Lite,
and as both upstream and downstream line drivers in CAP ADSL
systems. Operating on a single +5V supply, the DRV1101 can
supply up to 230mA peak output current. The output voltage can
swing up to 9.5Vp-p on a single +5V supply. In ADSL G.Lite
applications, DRV1101 can supply up to 10dBm average line
power with a crest factor of 5.3. Both are priced at
$2.95
each in
1000s.
See Figure 5.
Features
5MHz Bandwidth: 6Vp-p into
15
(DRV1100)
10MHz Bandwidth: 6Vp-p into
15
(DRV1101)
Fixed Differential Gain of 3V/V
PDIP-8 and SO-8 (DRV1100)
SO-8 Package (DRV1101)
Fig. 5
Fig. 6
AFE1203 and AFE1205
+12V DSL Line Driver and Receiver
+5V DSL Line Driver and Receiver
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