SN65HVD62 Datasheet, PDF (1/16 Pages) Texas Instruments – AISG On-Off Keying Coax Modem Transceiver

SN65HVD62
www.ti.com
SLLSE94A – SEPTEMBER 2011 – REVISED FEBRUARY 2012
AISG On-Off Keying Coax Modem Transceiver
Check for Samples: SN65HVD62
FEATURES
1
• Supply Ranging From 3V to 5.5V
• Independent Logic Supply of 1.6V to 5.5V
• Wide Input Dynamic Range of –15dBm to
+5dBm for Receiver
• Power Delivered by the Driver to the Coax can
be Adjusted From +3dBm to +6dBm
• AISG Compliant Output Emission Profile
• Low-power Standby Mode
• Direction Control Output for RS-485 Bus
Arbitration
• Supports up to 115 kbps Signaling
• Integrated Active Bandpass Filter in the
Receiver Path with Center Frequency at
2.176MHz
• 3mm × 3mm 16-Pin QFN Package
APPLICATIONS
• AISG – Interface for Antenna Line Devices
• Tower Mounted Amplifiers (TMA)
• General Modem Interfaces
DESCRIPTION
These transceivers modulate and demodulate signals
between the logic (baseband) and a frequency
suitable for long coaxial media.
The HVD62 is an integrated AISG transceiver
designed to be compliant with Antenna Interface
Standards Group v2.0 specification.
The HVD62 receiver integrates an active bandpass
filter to enable demodulation of signals even in the
presence of spurious frequency components. The
filter has a 2.176 MHz center frequency.
The transmitter supports adjustable output power
levels varying from +3dBm to +6dBm delivered to the
50 Ω coax cable. The HVD62 transmitter is compliant
with the spectrum emission requirement provided by
the AISG standard.
A direction control output is provided which facilitates
bus arbitration for an RS-485 interface. These
devices integrate an oscillator input for a crystal, and
also accept standard clock inputs to the oscillator.
V_L
Vcc
3
13
1 _SYNCOUT
XTAL1 ¹⁴
XTAL2 ¹⁵
XTAL
Buffer
OOK
MOD
PREAMP
FILTER
2.176
OUTPUT
STAGE
9 _RES
12
TXOUT
2
TXIN
7
DIRSET1 ₆
DIRSET2
5
DIR
Control
Logic
4
RXOUT
Buffer
COMP
OOK
DEMOD
Buffer
RECEIVER
THRESHOLD
16
GND
8
GND
10
BIAS
FILTER
2.176
11 _RXIN
1
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