mc145480vf Freescale Semiconductor, Inc, mc145480vf Datasheet
mc145480vf
Available stocks
Related parts for mc145480vf
mc145480vf Summary of contents
Page 1
... MC145480 P SUFFIX PLASTIC DIP CASE 738 SUFFIX SOG PACKAGE 20 CASE 751D 1 VF SUFFIX SSOP CASE 940C 20 1 ORDERING INFORMATION MC145480P Plastic DIP MC145480DW SOG Package MC145480VF SSOP PIN ASSIGNMENT RO RO– TI TI– PO– PO+ ...
Page 2
– FREQ PI – PO – – – – Figure 1. MC145480 PCM Codec–Filter Block Diagram DEVICE DESCRIPTION A PCM Codec–Filter ...
Page 3
PIN DESCRIPTIONS POWER SUPPLY V DD Positive Power Supply (Pin 6) This is the most positive power supply and is typically con- nected This pin should be decoupled with a 0.1 F ceramic ...
Page 4
PO+ and PO–. Connecting will power down the power driver amplifiers and the PO+ and PO– outputs ...
Page 5
All of the analog circuitry involved in the data conversion (the voltage reference, RDAC, CDAC, and comparator) are implemented with a differential architecture. The receive section includes the DAC described above, a ...
Page 6
FST (FSR) BCLKT (BCLKR DON’T CARE 1 Figure NO TAGa. Long Frame Sync (Transmit and Receive Have Individual FST (FSR) BCLKT (BCLKR DON’T CARE 1 Figure NO TAGb. Short Frame Sync (Transmit and Receive ...
Page 7
Long Frame Sync Long Frame Sync is the industry name for one type of clocking format that controls the transfer of the PCM data words. (Refer to Figure NO TAGa.) The ‘‘Frame Sync’’ or ‘‘Enable’’ is used for two specific ...
Page 8
FSR pin controls whether the B1 channel or the B2 channel is used for both transmit and receive PCM data word trans- fers. When the FSR pin is low, the transmit and receive PCM words are transferred in the B1 ...
Page 9
PC BOARD MOUNTING It is recommended that the device be soldered to the PC board for optimum noise performance. If the device used in a socket, it should be placed in a low parasitic pin inductance (generally, ...
Page 10
MAXIMUM RATINGS (Voltages Referenced Pin) Rating DC Supply Voltage Voltage on Any Analog Input or Output Pin Voltage on Any Digital Input or Output Pin Operating Temperature Range Storage Temperature Range POWER SUPPLY ( – ...
Page 11
ANALOG ELECTRICAL CHARACTERISTICS Characteristics Input Current AC Input Impedance kHz) Input Capacitance Input Offset Voltage Amp Input Common Mode Voltage Range Input Common Mode Rejection Ratio Gain Bandwidth Product (10 kHz ...
Page 12
ANALOG TRANSMISSION PERFORMANCE ( 5 All Analog Signals Referenced dBm0 = 0.775 Vrms = + 0 dBm @ 600 , FST = FSR = 8 ...
Page 13
DIGITAL SWITCHING CHARACTERISTICS, LONG FRAME SYNC AND SHORT FRAME SYNC ( 5 All Digital Signals Referenced – ...
Page 14
MCLK 1 BCLKT 11 FST 16 MSB DT 1 BCLKR 11 12 FSR MSB DR MC145480 CH1 CH2 CH3 ST1 ...
Page 15
MCLK 12 1 BCLKT 20 11 FST 22 MSB DT 1 BCLKR FSR 13 MSB DR MOTOROLA CH1 CH2 CH3 ST1 ...
Page 16
DIGITAL SWITCHING CHARACTERISTICS FOR IDL MODE ( 5 – 150 pF, See Figure 5 and Note 1) Ref. No. 31 Time Between Successive IDL Syncs ...
Page 17
DIGITAL SWITCHING CHARACTERISTICS FOR GCI MODE ( 5 – 150 pF, See Figure 6 and Note 1) Ref. No. 42 Time Between Successive FSC Pulses ...
Page 18
AUDIO OUT – 0.1 F Figure 7. MC145480 Test Circuit with Differential Input and Output AUDIO OUT AUDIO OUT 150 ...
Page 19
0.1 F GND 1/2 MC74HC73 K GND 8 kHz 256 2.048 MHz Figure 9. Long Frame Sync Clock Circuit for 2.048 MHz SIDETONE REC + ...
Page 20
R0 = 600 TIP RING + 5 V 0.1 F Figure 11. MC145480 Transformer Interface to 600 R0 = 600 TIP N = 0.5 1 0.5 – ...
Page 21
Table 3. Mu–Law Encode–Decode Characteristics Normalized Encode Chord Number Step Decision Number of Steps Size Levels 8159 7903 8 16 256 4319 4063 7 16 128 2143 2015 1055 991 511 479 4 16 ...
Page 22
Table 4. A–Law Encode–Decode Characteristics Normalized Encode Chord Number Step Decision Number of Steps Size Levels 4096 3968 7 16 128 2176 2048 1088 1024 544 512 272 256 3 16 ...
Page 23
SEATING PLANE –A– –B– 20X 0.010 (0.25 18X K MOTOROLA PACKAGE DIMENSIONS P SUFFIX PLASTIC DIP CASE 738– ...
Page 24
K 20X 0.12 (0.005) 20 L/2 L PIN 1 1 IDENT A –V– 0.20 (0.008 0.076 (0.003) –T– SEATING PLANE D G Motorola reserves the right to make changes without further notice to any products ...