Block Diagram - Harman Kardon AVR347 Service Manual

AVR347
IDTQS3VH16233
2.5V / 3.3V 32:16 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
FEATURES:
• N channel FET switches with no parasitic diode to Vcc
− − − − − Isolation under power-off conditions
− − − − − No DC path to Vcc or GND
− − − − − 5V tolerant in OFF and ON state
• 5V tolerant I/Os
- 4Ω Ω Ω Ω Ω typical
• Low R
ON
• Flat R characteristics over operating range
ON
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent R matching between channels
ON
• Vcc operation: 2.3V to 3.6V
• High bandwidth - up to 500 MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in SSOP and TSSOP packages
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
TEST
1
SEL
1
xA
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
2.5V / 3.3V 32:16 MUX/DEMUX
HIGH BANDWIDTH BUS SWITCH
x = 1 through 8
xB
2
xB
1
O NE O F EIG HT CHA NNE LS
® PRODUCTS
DESCRIPTION:
The QS3VH16233 HotSwitch is a 32-bit to 16-bit high bandwidth bus
switch, which can multiplex or demultiplex data. The QS3VH16233 has
very low ON resistance, resulting in under 250ps propagation delay
through the switch. This device can be used as two 16-bit to 8-bit
multiplexers or as one 32-bit to 16-bit multiplexer. SELx inputs control the
data flow. TESTx inputs control either one or two ports connection. In the
OFF and ON states, the switches are 5V-tolerant. In the OFF state, the
switches offer very high impedance at the terminals.
The combination of near-zero propagation delay, high OFF impedance,
and over-voltage tolerance also makes the QS3VH16233 ideal for high
performance communications applications.
The QS3VH16233 is characterized for operation from -40°C to +85°C.
TEST
2
SEL
2
xA
1
133
harman/kardon
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH16233
x = 9 through 16
xB
2
xB
1
O NE OF E IGHT CHANNE LS