THS6032 Datasheet, PDF (2/31 Pages) Texas Instruments – LOW-POWER ADSL CENTRAL-OFFICE LINE DRIVER

THS6032
LOW-POWER ADSL CENTRAL-OFFICE LINE DRIVER
SLOS233C – APRIL1999 – REVISED MARCH 2000
description
The class-G architecture supplies current to the load from four supplies. For low output voltages (typically
– 2.5 < V_O < +2.5), some of the output current is supplied from the +V_CC(L) and –V_CC(L) supplies (typically ± 5 V).
For large output voltages (typically V_O < – 2.5 and V_O > + 2.5), the output current is supplied from +V_CC(H) and
–V_CC(H) (typically ± 15 V). This current sharing between V_CC(L) and V_CC(H) minimizes power dissipation within
the THS6032 output stages for high crest factor ADSL signals.
The THS6032 features a low-impedance shutdown mode, which allows the central office to receive incoming
calls even after the device has been shut down. The THS6032 is available packaged in the patented PowerPAD
package. This package provides outstanding thermal characteristics in a small-footprint surface-mount
package, which is fully compatible with automated surface-mount assembly procedures. It is also available in
the new MicoStar Junior BGA package. This package is only 25 mm² in area, allowing for high density PCB
designs.
Shutdown (SHDN1 and SHDN2) allows for powering down the internal circuitry for power conservation or for
multiplexing. Separate shutdown controls are available for each channel on the THS6032. The control levels
are TTL compatible. When turned off, each driver output is placed in a low impedance state which is determined
by the voltage at DGND. This virtual ground at the outputs allows proper termination of a transmission line.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
PowerPAD PLASTIC SMALL OUTLINE
(DWP)
PACKAGED DEVICES
MicroStar Junior (BGA)
(GQE)
0°C to 70°C
THS6032CDWP
THS6032CGQE
– 40°C to 85°C
THS6032IDWP
THS6032IGQE
† _{The THS6032 is available taped and reeled. Add an R suffix to the device type (i.e.,THS6032CDWPR)}
‡ _{Uses the THS6032CGQE packaging option.}
EVALUATION MODULES
THS6032EVM
THS6032GQE EVM‡
—
NAME
1OUT
1IN–
1IN+
2OUT
2IN–
2IN+
VCCH–
VCCH+
VCCL–
VCCL+
SHDN1
SHDN2
DGND
PAD
NC
Terminal Functions
TERMINAL
DWP PACKAGE
TERMINAL NO.
3
5
6
18
16
15
2
19
4
17
8
9
12
1, 10, 11, 20
7, 13, 14
GQE PACKAGE
TERMINAL NO.
B1
F1
H1
B9
F9
H9
A3
A7
D1
D9
J2
J4
J7
N/A
N/A
2
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