RDS PIRA32 Manual Download Page 13

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PIRA32 Microcontroller

m32.pdf - page 13

4.2.4

Part list

Part

Value

IC1

24LC256-I/P

IC2

PIRA32 Microcontroller

IC3

MAX232

IC4

LM567

IC5

TLC272

IC6

7805

IC7

PCF8563

D1, D2

1N4007

D3, D4

LED 5mm

D5, D6

1N4148

4.332 MHz crystal

32.768 kHz crystal

09P-331K (330 uH)

09P-152J (1.5 mH)

RE1

signal relay

CANON 9F connector

J5, J6

BNC connector

C1, C2, C3, C4

1u (min. 50V, electrolytic)

C5, C10

100u (min. 25V, electrolytic)

C6, C11, C12, C18, C19, C20, C24, C26, C32

100n (ceramic)

C7, C8

10u (min. 35V, electrolytic)

C9, C33

100u (min. 16V, electrolytic)

C13, C14, C30

22p (ceramic)

C15, C16, C25

4n7 (foil)

C17

22n (5%, foil)

C21

3n3 (foil)

C22

220n (foil)

C23, C29

1n (ceramic)

C27

47n (5%, foil)

C28

330p (ceramic)

C31

4u7 (foil)

BT1

CR2032 battery in vertical socket

POWER

DC power connector

R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11,
R12, R13, R17, R29, R30, R36, R37

R14, R19, R26, R31, R32, R33, R39

10k

R15, R18, R22

15k

R16, R20, R21, R24

33k

R23

4k7

R25

91R

R27

trimmer 1k

R28

trimmer 5k

R35

150k

RN1

3x 1k resistor network

RN2

4x 1k resistor network

Summary of Contents for PIRA32

Page 1: ...2106 Continuous RDS transmission during all operations Firmware update capability Communication bus RS 232 bidirectional Baud rate 1200 to 19200 Bd Packages available 28 Pin PDIP 28 Pin SOIC TYPICAL APPLICATIONS FM broadcast RDS encoders with single communication port RDS testing research and development Important Note This datasheet is not intended to be a complete PIRA32 system designer s refere...

Page 2: ...rnal TA switch 7 3 6 RS 232 interface 7 3 7 Digital to Analog converter 8 3 8 Output low pass filter 9 3 9 Expansion I 2 C bus 9 3 10 Operation without EEPROM on I 2 C bus 9 4 CONNECTION DIAGRAMS 10 4 1 Basic connection diagram 10 4 2 Reference connection diagram 11 4 2 1 Setting up 11 4 2 2 I O connectors and control items 11 4 2 3 Schematic diagram 12 4 2 4 Part list 13 5 PACKAGE DETAILS 14 5 1 ...

Page 3: ...r If the pilot sync function is not required mono transmission connect this pin to VDD through a resistor so internal clock reference will be used PILOT Pilot tone input The pilot tone must comply with TTL levels If pilot tone is not available or does not meet the specifications required the SYNC pin should be driven high PROGRAM Program select Selects between two different RDS data sets program 1...

Page 4: ...connected SCL I 2 C serial clock output Open drain terminal external 2k pull up resistor is required SDA I 2 C serial data input output Open drain terminal external 2k pull up resistor is required TXD Serial port transmit data Serial RS 232 port transmit data output software selectable 1200 to 19200 bps Logical high idle This pin is required for proper software configuration of the device RXD Seri...

Page 5: ...put data buffer 48 R D S group sequencer O perational m em ory R AM Internal R TC IIC controller C om m and interpreter R X buffer 48 bytes Pow er supply R eset O SC Internal reference R D S on off PILO T TA PR O G R AM D A0 D A 7 V D D V SS SYN C R ESET O SC IN O SC O U T LED 1 SC L SD A R XD TXD LED 2 C om m and buffer 280 bytes P 32 M C U Scheduler ...

Page 6: ... 0 3 V to VDD 0 3 V Maximum current sourced by any output pin 25 mA Maximum current sunk by any output pin 25 mA Stresses above those listed under Maximum Ratings may cause permanent damage to the device Symbol Parameter Min Typ Max Unit Conditions VDD Supply voltage 4 2 5 5 V FOSC Oscillator Frequency 0 01 4 332 0 01 MHz FS D A Converter sampling rate 361 kHz BPLL PLL capture range 8 Hz Stereo br...

Page 7: ...ed crystal type is Auris Q 4 332000M HC49US F 30 30 D 16 or equivalent 3 3 Power supply The power supply must be bypassed close to the device with a 100 nF ceramic capacitor The output RDS level varies proportionally to the supply voltage 3 4 Internal PLL The PIRA32 Microcontroller includes an internal phase locked loop which synchronises the RDS subcarrier with 19 kHz pilot tone in case of stereo...

Page 8: ... output signal using low cost resistor network Figure 4 3 shows accurate 8 bit DAC using R 2R resistor network It s a binary weighted DAC that creates each value with a repeating structure of 2 resistor values R and R times two This is an optimal DAC for this device The resistor value tolerance must not exceed 2 Figure 4 3 8 bit D A converter R 2R network Figure 4 4 Output RDS signal on oscillosco...

Page 9: ...its functions and features All of these devices are optional i e the final design is highly customizable The devices are recognized automatically on power up or device reset The I 2 C devices supported are listed in following table Device name Manufacturer Description 24LC256 Microchip Serial EEPROM Non volatile memory for storing RDS and configuration data Recommended for proper function PCF8563 ...

Page 10: ...witch Driving this pin low will activate the RDS TA flag Optional PILOT Pilot input 19 kHz TTL from stereo encoder or pilot recovery circuit Optional RS232 RS232 interface in TTL levels for connection to a PC or any data provider through a level converter USB adapter or Ethernet adapter PLL_SYNC Synchronization source selection 0 External pilot 1 Internal clock IIC Expansion I 2 C bus RDS_OUT Fina...

Page 11: ...t 4 2 1 Setting up After assembly the setting up can be made in a few steps Without any input signal connected adjust 19 kHz 100 Hz on pin 3 of the IC2 Initialize the EEPROM memory in the Windows control software select RDS Encoder Special Initialize or follow the Technical manual 4 2 2 I O connectors and control items J5 Output J6 Optional pilot MPX input JP2 Loopthrough mode enabling jumper R27 ...

Page 12: ...PIRA32 Microcontroller m32 pdf page 12 2016 Pira cz 4 2 3 Schematic diagram ...

Page 13: ...10 100u min 25V electrolytic C6 C11 C12 C18 C19 C20 C24 C26 C32 100n ceramic C7 C8 10u min 35V electrolytic C9 C33 100u min 16V electrolytic C13 C14 C30 22p ceramic C15 C16 C25 4n7 foil C17 22n 5 foil C21 3n3 foil C22 220n foil C23 C29 1n ceramic C27 47n 5 foil C28 330p ceramic C31 4u7 foil BT1 CR2032 battery in vertical socket POWER DC power connector R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R1...

Page 14: ... A1 015 Shoulder to Shoulder Width E 300 310 325 Molded Package Width E1 275 285 295 Overall Length D 1 345 1 365 1 385 Tip to Seating Plane L 125 130 135 Lead Thickness c 008 012 015 Upper Lead Width B1 040 053 065 Lower Lead Width B 016 019 022 Overall Row Spacing eB 320 350 430 Mold Draft Angle Top 5 10 15 Mold Draft Angle Bottom 5 10 15 Notes Significant Characteristic Dimension D and E1 do no...

Page 15: ... 0 20 0 30 Overall Width E 10 01 10 34 10 67 Molded Package Width E1 7 32 7 49 7 59 Overall Length D 17 65 17 87 18 08 Chamfer Distance h 0 25 0 50 0 74 Foot Length L 0 41 0 84 1 27 Foot Angle Top 0 4 8 Lead Thickness c 0 23 0 28 0 33 Lead Width B 0 36 0 42 0 51 Mold Draft Angle Top 0 12 15 Mold Draft Angle Bottom 0 12 15 Notes Significant Characteristic Dimensions D and E1 do not include mold fla...

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