MC14LC5480P Freescale Semiconductor, Inc, MC14LC5480P Datasheet
MC14LC5480P
Available stocks
Related parts for MC14LC5480P
MC14LC5480P Summary of contents
Page 1
... For More Information On This Product, Go to: www.freescale.com Order this document by MC14LC5480/D MC14LC5480 P SUFFIX PLASTIC DIP CASE 738 SUFFIX SOG PACKAGE 20 CASE 751D 1 SD SUFFIX SSOP CASE 940C 20 1 ORDERING INFORMATION MC14LC5480P Plastic DIP MC14LC5480DW SOG Package MC14LC5480SD SSOP PIN ASSIGNMENT TI- PO- 4 ...
Page 2
... Freescale Semiconductor, Inc Figure 1. MC14LC5480 PCM Codec–Filter Block Diagram DEVICE DESCRIPTION A PCM Codec–Filter is used for digitizing and reconstruct- ing the human voice. These devices are used primarily for the telephone network to facilitate voice switching and trans- mission. Once the voice is digitized, it may be switched by digital switching methods or transmitted long distance (T1, microwave, satellites, etc ...
Page 3
... Freescale Semiconductor, Inc. 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 capacitor Negative Power Supply (Pin 15) This is the most negative power supply and is typically connected ...
Page 4
... Freescale Semiconductor, Inc. therefore low impedance loads must be between PO+ and PO–. Connecting will power down the power driver amplifiers and the PO+ and PO– outputs will be high imped- ance. This pin is also high impedance when the device is powered down by the PDI pin. ...
Page 5
... Freescale Semiconductor, Inc. version algorithm. 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 sample and hold amplifier, a 5–pole, 3400 Hz switched ca- pacitor low– ...
Page 6
... Freescale Semiconductor, Inc. FST (FSR) BCLKT (BCLKR DON'T CARE 1 2 Figure 2a. Long Frame Sync (Transmit and Receive Have Individual Clocking) FST (FSR) BCLKT (BCLKR DON'T CARE 1 2 Figure 2b. Short Frame Sync (Transmit and Receive Have Individual Clocking) IDL SYNC (FST) IDL CLOCK (BCLKT) ...
Page 7
... Freescale Semiconductor, Inc. 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 2a.) The ‘‘Frame Sync’’ or ‘‘Enable’’ is used for two specific synchronizing functions. The first is to synchronize the PCM data word transfer, and the second is to control the internal analog– ...
Page 8
... Freescale Semiconductor, Inc. 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 channel, and for FSR high the B2 channel is selected ...
Page 9
... Freescale Semiconductor, Inc. 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, low–profile) socket. POWER SUPPLY, GROUND, AND NOISE CONSIDERATIONS This device is intended to be used in switching applica- tions which often require plugging the PC board into a rack with power applied. This is known as ‘ ...
Page 10
... Freescale Semiconductor, Inc. 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 ( – Characteristics DC Supply Voltage Active Power Dissipation ( Power–Down Dissipation (V IH for Logic Levels Must be ...
Page 11
... Freescale Semiconductor, Inc. ANALOG ELECTRICAL CHARACTERISTICS Characteristics Input Current Input Resistance – 0.5 V Input Capacitance Input Offset Voltage Amp Input Common Mode Voltage Range Input Common Mode Rejection Ratio Gain Bandwidth Product (10 kHz Amp ( Open Loop Gain Amp ( Equivalent Input Noise (C–Message) Between TI+ and TI– ...
Page 12
... Freescale Semiconductor, Inc. ANALOG TRANSMISSION PERFORMANCE ( 5 All Analog Signals Referenced dBm0 = 0.775 Vrms = + 0 dBm @ 600 , FST = FSR = 8 kHz, BCLKT = MCLK = 2.048 MHz Synchronous Operation – Unless Otherwise Noted) Characteristics Absolute Gain (0 dBm0 @ 1.02 kHz 5.0 V) Absolute Gain Variation with Temperature (Referenced Absolute Gain Variation with Power Supply ( Gain vs Level Tone (Mu– ...
Page 13
... Freescale Semiconductor, Inc. DIGITAL SWITCHING CHARACTERISTICS, LONG FRAME SYNC AND SHORT FRAME SYNC ( 5 All Digital Signals Referenced – 150 pF, Unless Otherwise Noted) Ref. No. Characteristics 1 Master Clock Frequency for MCLK 1 MCLK Duty Cycle for 256 kHz Operation 2 Minimum Pulse Width High for MCLK (Frequencies of 512 kHz or Greater) ...
Page 14
... Freescale Semiconductor, Inc MCLK 1 BCLKT 12 11 FST 16 16 MSB DT 1 BCLKR 11 12 FSR MSB DR For More Information On This Product CH1 CH2 CH3 ST1 CH1 CH2 CH3 ST1 Figure 3. Long Frame Sync Timing Go to: www.freescale.com ST2 ST3 LSB ST2 ST3 LSB ...
Page 15
... Freescale Semiconductor, Inc MCLK 12 1 BCLKT FST 22 MSB DT 1 BCLKR FSR 13 MSB DR For More Information On This Product CH1 CH2 CH3 ST1 CH1 CH2 CH3 ST1 Figure 4. Short Frame Sync Timing Go to: www.freescale.com ST2 ST3 LSB ST2 ST3 LSB ...
Page 16
... Freescale Semiconductor, Inc. DIGITAL SWITCHING CHARACTERISTICS FOR IDL MODE ( 5 – 150 pF, See Figure 5 and Note 1) Ref. No. 31 Time Between Successive IDL Syncs 32 Hold Time of IDL SYNC After Falling Edge of IDL CLK 33 Setup Time of IDL SYNC Before Falling Edge IDL CLK ...
Page 17
... Freescale Semiconductor, Inc. DIGITAL SWITCHING CHARACTERISTICS FOR GCI MODE ( 5 – 150 pF, See Figure 6 and Note 1) Ref. No. 42 Time Between Successive FSC Pulses 43 DCL Clock Frequency 44 DCL Clock Pulse Width High 45 DCL Clock Pulse Width Low 46 Hold Time of FSC After Falling Edge of DCL ...
Page 18
... Freescale Semiconductor, Inc AUDIO OUT 0 Figure 7. MC14LC5480 Test Circuit with Differential Input and Output AUDIO OUT AUDIO OUT 150 0.1 F Figure 8. MC14LC5480 Test Circuit with Input and Output Referenced For More Information On This Product RO PO- 16 Mu/A PO FSR FST 13 DR ...
Page 19
... Freescale Semiconductor, Inc 0.1 F GND 1/2 MC74HC73 K GND R 8 kHz 256 1 2.048 MHz Figure 9. Long Frame Sync Clock Circuit for 2.048 MHz SIDETONE 1 RO PO- REC 5 PO FSR 0 BCLKR 10 PDI Figure 10. MC14LC5480 Analog Interface to Handset with IDL Clocking For More Information On This Product, Go to: www ...
Page 20
... Freescale Semiconductor, Inc 600 TIP RING + 5 V 0.1 F Figure 11. MC14LC5480 Transformer Interface to 600 R0 = 600 TIP 0.5 RING 0.1 F Figure 12. MC14LC5480 Step–Up Transformer Interface to 600 For More Information On This Product PO FSR BCLKR 10 PDI Telephone Line with GCI Clocking 1 ...
Page 21
... Freescale Semiconductor, Inc. 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 991 511 479 239 223 103 NOTES: 1. Characteristics are symmetrical about analog zero with sign bit = 0 for negative analog values. ...
Page 22
... Freescale Semiconductor, Inc. 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 544 512 272 256 136 128 NOTES: 1. Characteristics are symmetrical about analog zero with sign bit = 0 for negative analog values. ...
Page 23
... Freescale Semiconductor, Inc. - -T- SEATING PLANE 0.25 (0.010) –A– –B– 20X 0.010 (0.25 18X K For More Information On This Product, PACKAGE DIMENSIONS P SUFFIX PLASTIC DIP CASE 738– 0.25 (0.010 SUFFIX SOG PACKAGE CASE 751D–04 P 10X 0.010 (0.25 SEATING –T– ...
Page 24
... Freescale Semiconductor, Inc –R– –P– 0.120 (0.005) Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. ...