PT8A995 Datasheet, PDF (1/10 Pages) Pericom Semiconductor Corporation – Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs

PT8A995/9961/9962/9963/9964
Digital Proportional Remote Controller
with 2 Analog CHs & 2 Digital CHs
Features
• PT8A995 works as encoder and PT8A9961/9962/
9963/9964 work as decoders
• Supply voltage: 3.3V to 6.0V
• Internal auto-shutdown function
• Internal over-load protection to meet HD271 safety
specification (996x)
• Integrated RF circuit (995)
• Two analog channels, one for tachospeed and the
other for steering
• 32 steps for each of two analog channels
• Fine tuning selection for two analog channels
• Few external components needed
• Closed loop adjustment for servo motor (996x)
• Built-in voltage regulator (996x)
• Package: 16-pin DIP (995P), 20-pin DIP (996xP),
20-pin SOIC (996xS), see Ordering Information.
Applications
• Remote Controller
• Toys
• Remote Measurement
Ordering Information
Part Number
PT8A995PE
PT8A996xPE
PT8A996xSE
Package
Lead free 16-pin DIP
Lead free 20-pin DIP
Lead free and Green
20-pin SOIC
Note: x means 1-4 to show different part no.
Adding E=Pb-free or Pb-free and Green
Adding X suffix=Tape/Reel
Description
The PT8A995 and PT8A996x provide a simple and eco-
nomic solution for basic Digital Proportional R/C car toys.
The chipset uses CMOS LSI Analog and Mixed Signal
technology. They provide high quality encoder/decoder
circuit.
PT8A995 severs as an encoder. To obtain accurate tim-
ing easily, Manchester encoding is employed. Some digi-
tal modulation scheme can be used, e.g., general ASK,
OOK, FSK and QPSK. OOK is easy to implement and
low cost.
The PT8A996x provides a simple and cost effective so-
lution for basic Digital Proportional R/C car toys with
PT8A995 together. RF circuit in receiver side can de-
modulate RF signal. The demodulated signal will be am-
plified and filtered. After that, the base-band signal is
formed. DPLL is adopted to generate sampling clock.
An internal A/D converter is required to make servo mo-
tor work well. The inputs are SRV and OFFSET. Over-
load protection mechanism is built-in to meet Toy Safety
Requirement.
The PT8A996x provide four solutions for toy car by dif-
ferent capability Servo.
PT8A9961 PT8A9962 PT8A9963 PT8A9964
mini car small car middle car large car
12-07-0007
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PT0093-4
07/06/12