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参数资料
| 型号： | THS6226IRHBR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| 封装： | GREEN, PLASTIC, VQFN-32 |
| 文件页数： | 1/20页 |
| 文件大小： | 697K |
| 代理商： | THS6226IRHBR |
V
IN+
V
IN-
+12V
33nF
10.2W
THS6226
1:1.4
100kW
+12V
CLK
DATA
1 F
m
1 F
m
OUTD
OUTC
IND
INC
VLL_CD
VHH_CD
CAPL_CD
CAPH_CD
FBC
FBD
Line:
100W
SBOS499B
– JANUARY 2011 – REVISED FEBRUARY 2011
Gated-Class H, Dual-Port VDSL2 Line Driver
Check for Samples: THS6226
1
FEATURES
DESCRIPTION
23
Digitally-Adjustable Quiescent Current:
The
THS6226
is
a
dual-port,
class
H,
7.6mA to 23.0mA
current-feedback architecture, differential line driver
amplifier system ideal for xDSL systems. The device
1.0mA Bias Current Step
is
targeted
for
use
in
very-high-bit-rate
digital
Independent Voltage Boost and Main Line
subscriber line 2 (VDSL2) line driver systems that
Driver Disable
enable native DTM signals while supporting greater
Low-Power Line Termination Mode
than +20.5dBm line power (up to 8.5MHz) with good
linearity, supporting the G.993.2 VDSL2 8b profile. It
Full Capacitor Recharge: 3ms
is
also
fast
enough
to
support
central-office
Low Input Voltage Noise Density:
transmission of +14.5dBm line power up to 30MHz.
6.3 nV/
√Hz Input-Referred Voltage Noise
The unique architecture of the THS6226 allows
Low MTPR Distortion:
quiescent current to be minimal while still achieving
70dB with +19.8dBm G.993.2
—Profile 8b
very high linearity. Differential distortion, under full
–91dBc HD3 (1MHz, 60 Differential)
bias conditions, is
–91dBc at 1MHz and reduces to
only
–75dBc at 5MHz. Fixed multiple bias settings of
High Output Current: (383mA into 60
Ω)
the amplifiers offer enhanced power savings for line
Wide Output Swing: 40VPP (+12V, 60
lengths where the full performance of the amplifier is
Differential Load with a 1:1.4 Transformer)
not required. To allow for even more flexibility and
Wide Bandwidth: 125MHz
power savings on all profiles, quiescent current is
digitally adjustable from 7.6mA to 23mA with a bias
Port-to-Port Separation of 90dB at 1MHz
current step of 1.0mA. For systems where additional
PSRR: 70dB at 1MHz for Good Isolation
power savings while not transmitting are desired, the
THS6226 can be used in its line termination mode to
APPLICATIONS
maintain impedance matching.
Ideal for All VDSL2 Profiles
The wide output swing on +12V power supplies,
Backwards-Compatible with
coupled with excellent current drive, allows for wide
ADSL/ADSL2+/ADSL2++ Systems
dynamic headroom, keeping distortion minimal.
The THS6226 is available in a QFN-32 PowerPAD
package.
Typical VDSL2 Line Driver Circuit Using One Port of the THS6226
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
PowerPAD is a trademark of Texas Instruments, Inc.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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