PCM1600 Burr-Brown Corporation, PCM1600 Datasheet
PCM1600
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PCM1600 Summary of contents
Page 1
... Sampling rates up to 100kHz are supported. A full set of user-programmable functions are accessible through a 4-wire serial control port which supports register write and readback functions. NOTE: (1) The PCM1600 and PCM1601 utilize the same die and are electrically the same. All references to the PCM1600 apply equally to the PCM1601. PDS-1523C ...
Page 2
... Full Scale (0dB) AC Load 5 0.002dB –3dB 0.546f S Stopband = 0.546f –75 S Stopband = 0.567f –82 S 0.002dB –3dB 0.732f S Stopband = 0.732f – 20kHz f = 44kHz 2 PCM1600Y, PCM1601Y TYP MAX UNITS 24 Bits 2 Standard Left-Justified 16, 18, 20, 24-Bit 100 kHz 256, 384, 512, 768f S TTL-Compatible V 0.8 V 0.1 A –0 ...
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... NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K indicates 2000 devices per reel). Ordering 2000 pieces of “PCM1600Y/2K” will get a single 2000-piece Tape and Reel. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’ ...
Page 4
... ZERO4 4 ZERO5 5 ZERO6 6 AGND OUT OUT OUT OUT 13 ® PCM1600, PCM1601 DAC DAC 8x Enhanced Oversampling DAC Multi-level Digital Filter Delta-Sigma with Modulator Function DAC Controller DAC DAC Zero Detect PCM1600 ...
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... NOTES: (1) Schmitt-Trigger input with internal pull-down, 5V tolerant. (2) Schmitt-Trigger input, 5V tolerant. (3) Tri-state output. 1. OUT 2. OUT 3. OUT 4. OUT 5. OUT 6. OUT (3) (1) (1) (1) (1) ( and one-half of 256, 384, 512, or 768f S (2) S (1) 1 and V 2 (2) OUT OUT (2) 3 and V 4 OUT OUT (2) 5 and V 6 OUT OUT PCM1600, PCM1601 5 S. (2) . ® ...
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... Frequency (kHz) DE-EMPHASIS FREQUENCY RESPONSE (f 0 –2 –4 –6 –8 – Frequency (kHz) ® PCM1600, PCM1601 (f = 44.1kHz), and 24-bit input data, unless otherwise noted 0.003 0.002 0.001 0 –0.001 –0.002 –0.003 3 3 –2 – ...
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... 110 108 106 –60dB 104 102 100 98 0dB 96 4.0 5.5 6.0 CC 110 108 106 104 102 S 100 98 96 5.5 6.0 4.0 PCM1600, PCM1601 7 DYNAMIC RANGE 3.3V) DD 44.1kHz, 384f S 96kHz, 384f S 4.5 5.0 5.5 6.0 V (V) CC CHANNEL SEPARATION 3.3V) DD 44.1kHz, 384f S 96kHz, 384f S 4.5 5.0 5.5 6 ...
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... DD 110 108 106 44.1kHz, 384f S 104 102 96kHz, 384f S 100 98 96 – Temperature ( C) ® PCM1600, PCM1601 (Cont 44.1kHz), and 24-bit input data, unless otherwise noted 110 108 106 –60dB 104 102 100 S 98 0dB 96 75 100 –25 110 ...
Page 9
... V will be enabled. The initialization sequence requires 1024 system clocks from the time V ization period, the PCM1600 will be set to its reset default state, as described in the Mode Control Register section of this data sheet. The PCM1600 also includes an external reset capability using the RST input (pin 37) ...
Page 10
... DATA1, DATA2 and DATA3 into the audio interface’s serial shift registers. Serial data is clocked into the PCM1600 on the rising edge of BCK. LRCK is the serial audio left/right word clock used to latch serial data into the serial audio interface’s internal registers ...
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... PCM1600, PCM1601 11 ® ...
Page 12
... ML is set to logic ‘0’. Sixteen clocks are then provided on MC, corresponding to the 16-bits of the control data word on MDI. After the sixteenth clock cycle has completed set to logic ‘1’ to latch the data into the indexed mode control register. ® PCM1600, PCM1601 t t BCL LB t ...
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... PCM1600, PCM1601 13 ® ...
Page 14
... NOTE: (1) MC rising edge for LSB to ML rising edge. FIGURE 10. Control Interface Timing. ® PCM1600, PCM1601 pin. The Read cycle starts by setting the R/W bit of the control word to ‘1’, and setting all of the IDX[6:0] bits to ‘0.’. All subsequent bits input on the MDI are ignored while ML is set to ‘ ...
Page 15
... MODE CONTROL REGISTERS User-Programmable Mode Controls The PCM1600 includes a number of user-programmable functions which are accessed via control registers. The registers are programmed using the Serial Control Interface which was previously discussed in this data sheet. Table III lists the available mode control functions, along with their reset default conditions and associated register index ...
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... B 1111 1110 B 1111 1101 B • • • 1000 0010 B 1000 0001 B 1000 0000 B • • • 0000 0000 B ® PCM1600, PCM1601 B11 B10 IDX3 IDX2 IDX1 IDX0 AT17 IDX3 IDX2 IDX1 IDX0 AT27 IDX3 IDX2 IDX1 IDX0 AT37 ...
Page 17
... B11 B10 IDX3 IDX2 IDX1 IDX0 ATLD ATTS (default OUT 1 through V 6. The Soft Mute function is incorporated into the digital OUT OUT PCM1600, PCM1601 MUT6 MUT5 MUT4 MUT3 MUT2 MUT1 ® ...
Page 18
... DACx = 1 DAC Operation Disabled The DAC operation controls are used to enable and disable the DAC outputs, V DACx = 0, the output amplifier input is connected to the DAC output. When DACx = 1, the output amplifier input is switched to the DC common-mode voltage (V ® PCM1600, PCM1601 B11 B10 ...
Page 19
... The FMT[2:0] bits are used to select the data format for the serial audio interface. B11 B10 IDX3 IDX2 IDX1 IDX0 res res = f (default) SCLKO SCLKI = f /2 SCLKO SCLKL PCM1600, PCM1601 FLT0 CLKD CLKE FMT2 FMT1 FMT0 ® ...
Page 20
... Default Value: 0 DM56 = 0 De-Emphasis Disabled for Channels 5 and 6 (default) DM56 = 1 De-Emphasis Enabled for Channels 5 and 6 The DM56 bit is used to enable or disable the de-emphasis function for V to the Left and Right channels of the DATA3 input. ® PCM1600, PCM1601 B11 B10 IDX3 ...
Page 21
... Refer to the Serial Control Interface section of this data sheet for details regarding the Single Register and Auto- Increment Read operations. B11 B10 IDX3 IDX2 IDX1 IDX0 INC REG6 PCM1600, PCM1601 REG5 REG4 REG3 REG2 REG1 REG0 . ...
Page 22
... COM ® PCM1600, PCM1601 ZERO FLAG AND INFINITE ZERO DETECT MUTE FUNCTIONS The PCM1600 includes circuitry for detecting an all ‘0’ data condition for the data input pins, DATA1 through DATA3. This includes two independent functions: Zero Output Flags 1 through OUT and Zero Detect Mute ...
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... +3.3V Analog +3.3V Regulator +5V Analog + AGND3 AGND4 AGND5 AGND6 COM COM OUT OUT 12 Output C + Low-Pass 4 Filters +5V Analog PCM1600, PCM1601 ® ...
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... AGND2 AGND1 AGND0 MDO MDI MC ML ® PCM1600, PCM1601 OUT 3 V OUT 4 V OUT 5 V OUT AGND ZERO6 ZERO5 ZERO4 ZERO3 ZERO2 ZERO1 24 ...
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... POWER SUPPLIES AND GROUNDING The PCM1600 requires a +5V analog supply and a +3.3V digital supply. The +5V supply is used to power the DAC analog and output filter circuitry, while the +3.3V supply is used to power the digital filter and serial interface circuitry. For best performance, the +3.3V supply should be derived from the +5V supply using a linear regulator, as shown in Figure 14 ...
Page 26
... Figure 17. A ground plane is recommended, with the analog and digital sections being isolated from one another using a split or cut in the circuit board. The PCM1600 or PCM1601 should be oriented with the digital I/O pins facing the ground plane split/cut to allow for short, direct connections to the digital audio interface and control signals originating from the digital section of the board ...
Page 27
... THEORY OF OPERATION The delta-sigma section of PCM1600 is based on a 8-level amplitude quantizer and a 4th-order noise shaper. This section converts the oversampled input data to 8-level delta- sigma format. A block diagram of the 8-level delta-sigma modulator is shown in Figure 19. This 8-level delta-sigma modulator has the advantage of stability and clock jitter sensitivity over the typical one-bit (2 level) delta-sigma modulator ...
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... The SNR test provides a measure of the noise floor of the D/A converter. The input to the D/A is all 0’s data, and the D/A converter’s Infinite Zero Detect Mute function must be disabled (default condition at power up for the PCM1600, PCM1601). This ensures that the delta-sigma modulator output is connected to the output amplifier circuit so that idle tones (if present) can be observed and effect the SNR measurement ...