95246 PA5240 24-Bit, 192 kHz Stereo A/D Converter for PCM Audio ANALOG PRODUCTS DIVISION FEATURES GENERAL DESCRIPTION The PA5240 is a low cost stereo analog to digital converter. 95 dB dynamic range -85 dB THD+N Up to 200 kHz sampling frequency I2S or Left Justified audio data format, 16-24 bits VDDA and VDDD from 3V to 5.5V VDDP from 1.4V to 5.5V Auto speed mode detection in slave mode. Auto MCLK divide detection in master mode. The PA5240 can accept I²S or Left Justified serial audio data format up to 24-bit word length. The device uses advanced multi-bit ∆-∑ modulation technique to convert signals from analog to digital. The multi-bit ∆-∑ modulator makes the device with very low sensitivity to clock jitter and very low out of band noise. APPLICATIONS Digital Video Recorder Audio Recorder Set Top Boxes LCD or Digital TVs Car Audio A/V Receiver BLOCK DIAGRAM Multi-level Sigma-delta ADC AINL AINR DSP Audio Data Interface Clock Manager Sample Rate Detector Control Interface MCLK M1 M0 SDATA SCLK LRCK ORDERING INFORMATION Temperature Range -40 to 85 °C Package Part Number TSSOP-16 PA5240-T7 561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 474-1715 www.protekanalog.com 95246 Rev.0. 01/10 NOT FOR USE IN LIFE SUPPORT SYSTEMS PA5240 24-Bit, 192 kHz Stereo A/D Converter for PCM Audio ANALOG PRODUCTS DIVISION PIN DESCRIPTIONS Pin Name M0 1 16 M1 MCLK 2 15 REFP VDDP 3 14 GNDA SDOUT 4 13 VDDA GNDD 5 12 AINR VDDD 6 11 REFQ SCLK 7 10 AINL LRCK 8 9 Input or Output Pin Description Pin number PA5240 RESETb M0, M1 1, 16 I Mode selection MCLK 2 I Master clock SCLK 7 I/O Serial data bit clock LRCK 8 I/O Serial data left and right channel frame clock SDOUT 4 O Serial data output RESETb 9 I Active low chip reset AINL, AINR 10,12 I Analog left and right inputs VDDP 3 I Power supply for the digital input and output VDDD/GNDD 6, 5 I Digital power supply VDDA/GNDA 13, 14 I Analog power supply REFP 15 O Filtering capacitor connection REFQ 11 O Filtering capacitor connection ABSOLUTE MAXIMUM RATINGS Supply Voltage …………………………. MIN-0.3V MAX +7.0V Input Voltage ………………… MIN GND-0.3V MAX VDDP+0.3V Operating Temperature………………..MIN -40°C MAX +85°C Storage Temperature…………………MIN -65°C MAX +150°C RECOMMENDED OPERATING CONDITIONS VDDA …………………………. MIN 3.0V MAX 5.5V VDDD …………………………. MIN 3.0V MAX 5.5V VDDP………………………….. MIN 1.5V MAX 5.5V 561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 474-1715 www.protekanalog.com 95246 Rev.0. 01/10 NOT FOR USE IN LIFE SUPPORT SYSTEMS PA5240 24-Bit, 192 kHz Stereo A/D Converter for PCM Audio ANALOG PRODUCTS DIVISION ANALOG AND FILTER CHARACTERISTICS AND SPECIFICATIONS Test conditions are as the following unless otherwise specify: VDDA=5V, VDDD=3.3V, GNDA=0V, GNDD=0V, Ambient temperature=25C, Fs=48 KHz, 96 KHz or 192 KHz, MCLK/LRCK=256 or 128 PARAMETER MIN TYP MAX UNIT Dynamic Range (Note 1) 98 dB THD+N -85 dB Channel Separation (1KHz) 85 dB Signal to Noise ratio 98 dB Interchannel Gain Mismatch 0.1 dB Gain Error Filter Frequency Response – Single Speed Passband 0 Stopband 0.5465 % 0.4535 Fs Fs Passband Ripple Stopband Attenuation 5 ±0.05 70 dB dB Filter Frequency Response – Double Speed Passband 0 Stopband 0.5833 Fs ±0.005 dB Fs Passband Ripple Stopband Attenuation 0.4167 70 dB Filter Frequency Response – Quad Speed Passband 0 Stopband 0.7917 0.2083 Fs Passband Ripple Stopband Attenuation Fs ±0.005 70 dB dB Analog Input Full Scale Input Level 1 Vrms Input Impedance 20 KΩ Note 1. The value is measured used A-weighted filter. If not use, the result will decrease 2-3 dB. 561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 474-1715 www.protekanalog.com 95246 Rev.0. 01/10 NOT FOR USE IN LIFE SUPPORT SYSTEMS PA5240 24-Bit, 192 kHz Stereo A/D Converter for PCM Audio ANALOG PRODUCTS DIVISION SERIAL AUDIO PORT SWITCHING CHARACTERISTICS PARAMETER MCLK Frequency MCLK Duty Cycle LRCK Frequency LRCK Duty Cycle SCLK Frequency SCLK Pulse Width Low SCLK Pulse Width High SCLK Rising to LRCK Edge Delay SCLK Rising to LRCK Edge Setup Time SDATA Valid to SCLK Rising Setup Time SCLK Rising to SDATA Hold Time SYMBOL MIN 40 40 TSCKL TSCKH TLRH TRSU TSDS TSDH TSDS MAX 51.2 60 200 60 26 15 15 10 10 10 10 TSDH SDATA TSCKL TSCKH SCLK TSCKY LRCK TLRH TLRSU Figure 1 Serial Audio Port Timing 561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 474-1715 www.protekanalog.com 95246 Rev.0. 01/10 NOT FOR USE IN LIFE SUPPORT SYSTEMS UNIT MHz % KHz % MHz ns ns ns ns ns ns PA5240 24-Bit, 192 kHz Stereo A/D Converter for PCM Audio ANALOG PRODUCTS DIVISION DC CHARACTERISTICS AND SPECIFICATIONS PARAMETER MIN TYP MAX UNIT Power Supply Current (Normal Operation Mode) VDDA=5V VDDA=3.3V VDDD, VDDP=5V VDDD, VDDP=3.3V IA 23.3 mA IA 21.1 mA ID 32 mA ID 14 mA IA 1.5 mA Power Supply Current (Power Down Operation Mode) VDDA=5V VDDA=3.3V VDDD, VDDP=5V VDDD, VDDP=3.3V IA 1.2 mA ID TBD mA ID 1.1 mA Digital Voltage Level Input High-level Voltage VIH Input Low-level Voltage VIL Output High-level Voltage VOH Output Low-level Voltage VOL 0.7VDDP V 0.3VDDP V 0.7VDDP V 0.1VDDP V RECOMMENDED APPLICATION CIRCUIT ** These Resistors and capacitor can only be used if VDDD is derived from VDDA If used VDDD cannot drive any other Logic 5.1Ω VL (1.8 to 5.5V) VA (3.3 to 5.5V) **0.1µF **0.1µF **10µF 10µF 0.1µF 0.1µF 0.1µF PA5240 VD (3.3 to 5.5V) 0.1µF 10µF 0.1µF 3 6 VDDP 5 GNDD 9 RESETb ModeSet 0 ModeSet 1 MLRCK LRCK SCLK SDOUT VL or GND 1 16 2 8 7 4 33Ω 33Ω 33Ω VDDA VDDD RESETb M0 M1 MLRCK LRCK SCLK SDOUT GNDA 14 REFP 15 REFQ 10µF 10µF 10µF 0.1µF 0.1µF 0.1µF 11 0.1µF AINR 12 Analog Right IN AINL 10 Analog Left IN 2200pF *10K 0.1µF 13 2200pF Note: * Pull-up for I2S Pull-down for Left Justified Figure 1 Recommended Application Circuit 561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 474-1715 www.protekanalog.com 95246 Rev.0. 01/10 NOT FOR USE IN LIFE SUPPORT SYSTEMS PA5240 ANALOG PRODUCTS DIVISION 24-Bit, 192 kHz Stereo A/D Converter for PCM Audio APPLICATION DESCRIPTIONS Master Clock Mode, Slave Clock Mode and Sampling Frequency The device can work either in master clock mode or slave clock mode by setting mode control pins M1 and M0 according to Table 1. Table 1 Mode Control Pin Input/Output M1:M0 I Pin Description 00 – master clock mode, single speed mode 01 – master clock mode, double speed mode 10 – master clock mode, quad speed mode 11 – slave clock mode, all speed modes In master mode, LRCK and SCLK are derived internally from MCLK. The available MCLK/LRCK ratios are listed in Table 2. SCLK/LRCK ratio is always 64 in master mode. In slave mode, LRCK and SCLK are supplied externally. LRCK and SCLK must be synchronously derived from the system clock with some specific rates. The device can auto detect MCLK/LRCK ratio according to Table 2. The device only supports the MCLK/LRCK ratios listed in Table 2. The LRCK/SCLK ratio is normally 64. Table 2. Sampling Frequency and MCLK/LRCK Ratio Speed Mode 512 Mater Clock Mode Sampling Frequency 43kHz – 50kHz 256 8kHz – 50kHz 256 86kHz – 100kHz 128 50kHz – 100kHz 128 172kHz – 200kHz MCLK/LRCK Ratio Single Speed Double Speed Quad Speed 64* 100kHz – 200kHz *In Quad speed mode, 64 ratio only available in Master Mode Slave Clock Mode Fs Auto Detection Range 8kHz – 50kHz 84kHz – 100kHz 167kHz – 200kHz According to the sampling rate, the device can work in three speed modes: single speed, double speed and quad speed. In master mode, mode pins M1 and M0 set the speed mode according to Table 1. In slave mode, the device can detect the speed mode automatically when the sampling rate falls into the auto detection ranges listed in Table 2. Audio Data Output PA5240 can accept I²S or Left Justified serial audio input data from 16-bit to 24-bit. The device can detect the data word length automatically. The relationship of SDATA, SCLK and LRCK with the two formats is shown through Figure 2 to Figure 3. When device powers up, it will detect the logic level on SDOUT pin. If the logic level on SDOUT is high, PA5240 selects I²S format. If the logic level on SDOUT is low, PA5240 selects Left Justified format. SDOUT pin can be pull-up by a 10kΩ resistor to set I²S audio format, or pull-down by a 10 KΩ resistor to set Left Justified format. 561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 474-1715 www.protekanalog.com 95246 Rev.0. 01/10 NOT FOR USE IN LIFE SUPPORT SYSTEMS PA5240 24-Bit, 192 kHz Stereo A/D Converter for PCM Audio ANALOG PRODUCTS DIVISION 1 SCLK 1 SDATA 2 1 SCLK 3 n- 2 n- 1 MSB n 1 LSB MSB 2 3 n- 2 n- 1 n LSB SCLK LEFT CHANNEL LRCK RIGHT CHANNEL Figure 2 I²S Serial Audio Data Format Up To 24-bit SDATA 1 2 3 n- 2 n- 1 MSB n 1 LSB MSB 2 3 n- 2 n- 1 n LSB SCLK LRCK LEFT CHANNEL RIGHT CHANNEL Figure 3 Left Justified Serial Audio Data Format Up To 24-bit POWER UP AND POWER DOWN RESETb pin active low will put the device in power down mode. During power-up, RESETb pin should be hold at low level to keep the device in reset until the power supplies, clocks and mode selection pins are stable. 561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 474-1715 www.protekanalog.com 95246 Rev.0. 01/10 NOT FOR USE IN LIFE SUPPORT SYSTEMS PA5240 ANALOG PRODUCTS DIVISION 24-Bit, 192 kHz Stereo A/D Converter for PCM Audio PACKAGE INFORMATION Life Support Policy PROTEK ANALOG'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF PROTEK DEVICES. 561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 474-1715 www.protekanalog.com 95246 Rev.0. 01/10 NOT FOR USE IN LIFE SUPPORT SYSTEMS