Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 DESCRIPTION PT2319 is an audio processor IC specially designed for high fidelity audio applications utilizing advanced CMOS processing technology. Included in the IC are 5 stereo input signal ports, super bass and bass/treble controls, volume control, balance/fader controls and muting. The internal circuits of PT2319 have undergone meticulous adjustment to achieve the finest possible audio quality. Extremely low signal distortion, strong signal driving ability, and clear dynamic peak and level sound quality at any volume level distinguish PT2319 from other audio processors. PT2319 is the ideal solution for audio systems catering to the most demanding audiophiles. FEATURES z z z z z z z z z z z CMOS process technology Low level output signal loss: Typ.=0.003% at VOUT=1Vrms High level output driving ability: load impedance as low as 600Ω Large output amplitude Five stereo input signal ports Volume, balance and fader controls Super bass, bass and treble controls Select Out supports addition of externals circuits Built-in automatic power-on reset 3-wire digital control interface 36-pin SSOP packaging APPLICATIONS z z High fidelity audio systems Car audio systems PT2319 V1.4 -1- December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 VDD CL DI CE VSS BLOCK DIAGRAM RROUT LFOUT RFOUT Output Gain & Fader Output Gain & Fader LROUT RFIN Bass L4 L3 Treble RvREF Control Circuit + L2 L1 Vref -2- R1 R2 ROUT RSB RBASS2 RBASS1 RTRE R3 R4 Input Gain RIN Input SEL. Input SEL. Input Gain L5 PT2319 V1.4 Super Bass Control Interface + LIN LSELO Control Circuit LTRE Control Circuit LBASS1 LVref LBASS2 Bass LSB Treble LOUT Super Bass LFIN RSELO R5 December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 PIN CONFIGURATION DI CE VS S LROUT LFOUT LFIN LOUT LSB LBAS S2 LBAS S1 LTRE LIN LSELO L5 L4 L3 L2 L1 PT2319 V1.4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 P T 23 1 9 -3- 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 CL VDD RROUT RF OUT RF IN ROUT RSB RBA SS 2 RBA SS 1 RTR E RIN RSE LO R5 R4 R3 R2 R1 Vref December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 PIN DESCRIPTION Pin No. 1 2 3 4 5 7 8 9 10 11 13 14 15 16 17 18 19 20 21 22 23 24 25 27 28 29 30 31 33 34 35 36 PT2319 V1.4 Pin Name DI CE VSS LROUT LFOUT LOUT LSB LBASS2 LBASS1 LTRE LSELO L5 L4 L3 L2 L1 Vref R1 R2 R3 R4 R5 RSELO RTRE RBASS1 RBASS2 RSB ROUT RFOUT RROUT VDD CL Function 3-wire serial data pin 3-wire chip enable pin Ground pin Left rear channel output pin Left front channel output pin Left super bass output and external component connection pin Left super bass external component connection pin Left bass filter external component connection pin 2 Left bass filter external component connection pin 1 Capacitor connection pin for configuring treble filter (left) Input selector output pin (left) Input signal pin 5 (left) Input signal pin 4 (left) Input signal pin 3 (left) Input signal pin 2 (left) Input signal pin 1 (left) Reference voltage bypass capacitor Input signal pin 1 (right) Input signal pin 2 (right) Input signal pin 3 (right) Input signal pin 4 (right) Input signal pin 5 (right) Input selector output pin (right) Capacitor connection pin for configuring treble filter (right) Right bass filter external component connection pin 1 Right bass filter external component connection pin 2 Right super bass external component connection pin Right super bass output and external component connection pin Right front channel output pin Right rear channel output pin Power supply pin 3-wire serial clock input pins -4- December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 FUNCTION DESCRIPTION CONTROLLER FUNCTIONS Function Volume Control Scope 81-step gain control Range Step 0dB to –79dB Step 81 is -∞ Each step 1dB Output Total of 16 0dB to -60dB and Fader steps Step 16 is -∞ Bass control Treble control Super bass Input selector gain Output gain Input signal selector PT2319 V1.4 Total 15 steps Total 15 steps Total 11 steps Other Left and right channel gain can be adjusted independently as a balance control. 0dB to -20dB: 2dB steps -20dB to -25dB: 5dB steps Can select attenuation for either -25dB to -45dB: 10dB steps the front or rear channels. Then –60dB and -∞ ±11.9dB Each step 1.9dB ±11.9dB Each step 1.9dB 0dB to +20dB Each step 2dB Total 16 steps 0dB to +18.75dB Each step 1.25dB Total 3 steps 0dB, +6.5dB, +8.5dB Total 5 inputs Super bass gain boost only Stereo inputs -5- December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 3-WIRE SERIAL BUS INTERFACE To control any of PT2319’s functions, it is necessary to pass the microprocessor control signals through the CE, DI, and CL 3-wire interface. The basic timing sequence of the control codes is shown in the diagram below. CE DI B0 B1 B2 B3 A0 A1 A2 A3 D0 D1 D2 D3 D4 D5 D 38 D 39 D 40 D 41 D 42 D 43 CL CE 1µ s min 1µ s min 1µ s 1µ s 1 µ s min min min CL DI 1µ s ≤ T INTERFACE PROTOCOL The 52-bit control code for PT2319 is composed of an 8-bit address code and a 44-bit data code for a total control code length of 52 bits. CONTROL CODE DEFINITIONS Function Name Fader Super Bass Bass Treble Application Adjust fader gain Super bass boost Bass adjustment Treble adjustment Register Location D0 ~ D3 D4 ~ D7 D8 ~ D11 D12 ~ D15 Volume Main volume control D16 ~ D23 Input Gain Input Selector Fader Front/Rear Sel. Output Gain Input selector gain Input selector Fader channel selector Output gain select D24 ~ D27 D28, D29, D32 D30 D31, D39 Balance Left/right channel select D33, D34 Input Mute For muting D35 Test Mode For factory testing D36 ~ D38, D40 ~ D43 PT2319 V1.4 -6- Notes Only boost Can independently adjust left and right volumes Operates in conjunction with volume Send all zeroes under normal operation December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 CONTROL CODE BIT DIAGRAM B B B B A A A A 0 1 2 3 0 1 2 3 1 0 0 0 0 0 0 1 Ad d re ss co d e D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D 0 1 2 3 4 5 6 7 8 9 1 0 11 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 Vo lu m e co n t ro l F a d e r st e p co n tro l 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 -∞ d B -6 0 d B -4 5 d B -3 5 d B -2 5 d B -2 0 d B -1 8 d B -1 6 d B -1 4 d B -1 2 d B -1 0 d B -8 d B -6 d B -4 d B -2 d B 0dB Ba ss co n t ro l Bo o st 1 1 1 0 ST E P1 5 0 1 1 0 ST E P1 4 1 0 1 0 ST E P1 3 0 0 1 0 ST E P1 2 1 1 0 0 ST E P11 0 1 0 0 ST E P1 0 1 0 0 0 ST E P9 0 0 0 0 ST E P8 1 0 0 1 ST E P7 0 1 0 1 ST E P6 1 1 0 1 ST E P5 0 0 1 1 ST E P4 1 0 1 1 ST E P3 0 1 1 1 ST E P2 1 1 1 1 ST E P1 Cut Su p e r b a ss co n tro l 0 1 0 1 0 1 0 1 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 PT2319 V1.4 ST E P 0 (F L AT ) ST E P 1 ST E P 2 ST E P 3 ST E P 4 ST E P 5 ST E P 6 ST E P 7 ST E P 8 ST E P 9 ST E P 1 0 (B O OS T m a x) In p u t sw i tc h co n t ro l (1 ) Fader re sr /fro n t co n t ro l In p u t mu t e sw it ch co n t ro l 0 Rear 1 F ro n t In p u t g a in c o n tro l 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Tre b l e co n t ro l Bo o st 1 1 1 0 ST E P1 5 0 1 1 0 ST E P1 4 1 0 1 0 ST E P1 3 0 0 1 0 ST E P1 2 1 1 0 0 ST E P11 0 1 0 0 ST E P1 0 1 0 0 0 ST E P9 0 0 0 0 ST E P8 1 0 0 1 ST E P7 0 1 0 1 ST E P6 1 1 0 1 ST E P5 0 0 1 1 ST E P4 1 0 1 1 ST E P3 0 1 1 1 ST E P2 1 1 1 1 ST E P1 Cut -7- 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0dB +1 . 2 5 d B +2 . 5 0 d B +3 . 7 5 d B +5 . 0 0 d B +6 . 2 5 d B +7 . 5 0 d B +8 . 7 5 d B +1 0 . 0 0 d B +11 . 2 5 d B +1 2 . 5 0 d B +1 3 . 7 5 d B +1 5 . 0 0 d B +1 6 . 2 5 d B +1 7 . 5 0 d B +1 8 . 7 5 d B T ES T m ode In p u t sw i tc h co n t ro l (2 ) 0 OFF 1 ON Channel se l e ct io n 0 1 0 1 0 0 1 1 In i ti a l se tt in g L ch Rc h L /R sim u l ta n e o u s O u tp u t g a in c o n tro l 0 0 1 1 0dB 0 1 0dB 0 +6 . 5 d B 1 +8 . 5 d B December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 VOLUME CONTROL CODE DEFINITIONS D16 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 PT2319 V1.4 D17 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 D18 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 D19 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 D20 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 -8- D21 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 D22 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D23 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Operation 0dB -1dB -2dB -3dB -4dB -5dB -6dB -7dB -8dB -9dB -10dB -11dB -12dB -13dB -14dB -15dB -16dB -17dB -18dB -19dB -20dB -21dB -22dB -23dB -24dB -25dB -26dB -27dB -28dB -29dB -30dB -31dB -32dB -33dB -34dB -35dB -36dB -37dB -38dB -39dB -40dB -41dB December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC D16 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 PT2319 V1.4 D17 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 PT2319 D18 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 D19 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 D20 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 -9- D21 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 D22 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D23 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Operation -42dB -43dB -44dB -45dB -46dB -47dB -48dB -49dB -50dB -51dB -52dB -53dB -54dB -55dB -56dB -57dB -58dB -59dB -60dB -61dB -62dB -63dB -64dB -65dB -66dB -67dB -68dB -69dB -70dB -71dB -72dB -73dB -74dB -75dB -76dB -77dB -78dB -79dB -∞dB December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 INPUT SELECTOR DEFINITIONS D28 D29 D32 Operation 0 0 1 L1 (R1) ON 1 0 1 L2 (R2) ON 0 1 1 L3 (R3) ON 1 1 1 L4 (R4) ON 0 0 0 L5 (R5) ON IMPORTANT USER NOTES SOFTWARE PROGRAMMING NOTES Notes: 1. Internal registers are not in a set condition when the IC is powered on. To ensure that unusual noise will not be output, it is suggested that an external muting circuit is added before the control codes are sent. 2. After the IC has been powered on, send the IC a “clear register” code (to clear the register: D33 = D34 = 0) followed by initialization values for each register in order. 3. PT2319 control codes constitute a 52-bit signal. Each time a control code is sent, all data in the registry must be written into. When it is necessary to access only one function (for example, volume control only), it is allowed to change only the corresponding register data (in this example, D16 to D23) while the remaining registers are sent original unchanged data. CIRCUIT LAYOUT NOTES Notes: 1. To ensure that the 3-wire bus line signals (DI, CL, CE) do not interfere with the audio signals, when designing the circuit layout: 1) place the bus line at a sufficient distance from the audio path, and 2) the bus line and audio path should not be parallel. In addition to this, use a shielded ground pane or use a shielded cable to deliver signals to the interface. 2. To minimize interference between different voltage levels, please ensure that analog and digital grounds are separate. Analog grounds such as PT2319 GND and output terminal grounds should be connected together. The display shield, MCU, key scanning signal and remote control receiver decoder should be connected to a separate ground path. Finally, connect the two grounds at the power supply GND point. PT2319 V1.4 - 10 - December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 ABSOLUTE MAXIMUM RATINGS Parameter Supply voltage Symbol Vcc Max. input voltage VIMAX Operating temperature Storage temperature PT2319 V1.4 Topr Tstg Condition CL,DI,CE Other than CL,DI,CE - - 11 - Min. 0 -0.3 Vss - 0.3 -40 -65 Max. 11 11 VDD + 0.3 +85 +150 Unit V V ℃ ℃ December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 ELECTRICAL CHARACTERISTICS (Vcc=9V, Rs=600Ω, RL=10KΩ, f=1KHz, Ta=25℃, Volume, treble and bass=0dB) Parameter Symbol Condition Min. Typ. Max. Supply voltage Vcc 5 9 10 VDD=5V, No Load 11 16 Supply current Ic VDD=9V, No Load 15 20 Vi=1Vrms 0.003 0.01 Input Selector Vi=0.2Vrms 0.005 0.01 Total harmonic Vi=1Vrms 0.003 0.01 THD Volume Control distortion Vi=0.2Vrms 0.005 0.01 Vi=1Vrms 0.003 0.01 Fader Vi=0.2Vrms 0.005 0.01 Left and Right CTLR 100 110 120 channel separation Input selector CTIN 90 95 crosstalk Noise output Noise A-weighted 8 12 Signal to noise ratio S/N A-weighted 98 100 Mute level Mute Vin=1Vrms 100 F=100Hz, Vr=0.1V 60 65 Ripple reduction PSRR F=1KHz, Vr=0.1V 80 85 Select Input 35 50 65 Input resistance RIN Volume Control, Fader Input 30 40 50 Select Output, Volume Output, Output resistance ROUT 15 Fader Output Recommended lowest impedance RLOAD 600 load Maximum output VOMAX THD=1% 2.7 2.9 3.0 voltage Slew rate Slew Rate 4 Audio signal ABW -3dB, HF 550 Bandwidth 3-Wire Serial Bus Interface Input high level VIH CL, CE, DI 3.0 VDD Input low level VIL CL, CE, DI Vss 1.0 Pulse width Tw CL 1 Settle time Tsetup CL, CE, DI 1 Hold time Thold CL, CE, DI 1 Input clock Tclk CL, CE, DI 500 PT2319 V1.4 - 12 - Unit V mA % dB dB µV dB dB dB KΩ Ω Ω Vrms V/µs KHz V V µs µs µs KHz December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 GAIN ADJUSTMENT SCOPE Parameter Super Bass Control Maximum boost Step adjustment Bass Control Maximum boost Maximum attenuation Step adjustment Treble Control Maximum boost Maximum attenuation Step adjustment Input Gain Control Minimum gain Maximum gain Step adjustment Volume Control Minimum attenuation Maximum attenuation VOLgain Step adjustment Fader Attenuator Minimum attenuation VOLstep Maximum attenuation FADgain Step adjustment FADstep Output Gain Minimum gain OUTgain Step adjustment OUTstep PT2319 V1.4 Symbol Condition Min. Typ. Max. Unit Gsbass Gsbstep - - +20 2 - dB Gbass Gbass Gbstep - +9 -9 1 +11.9 -11.9 1.7 +14 -14 3 dB Gtreble Gtreble Gtstep - +9 -9 - +11.9 -11.9 1.7 +14 -14 - dB INgain INgain INstep Step 0 Step 15 - 0 +18.75 +1.25 - dB VOLgain Step 80 Step 1 Step 0 - - 0 -79 -∞ 1 - dB Step 15 Step 1 Step 0 0 ~ -20dB -20 ~ -25dB -25 ~ -45dB -45 ~ -60dB - 0 -60 -∞ 2 5 10 15 - Step 0 Step 1 Step 2 Step 3 - 0 0 +6.5 +8.5 - FADgain - 13 - dB dB dB December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 ELECTRICAL CHARACTERISTIC DIAGRAMS Total Harmonic Distortion and Amplitude 1Vrms Output FFT Analysis Left and Right Channel Crosstalk PT2319 V1.4 - 14 - December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 APPLICATION CIRCUIT 1 DI 2 CE CL 36 VDD µCOM VDD 35 3 VSS RROUT 34 4 LROUT RFOUT 33 + 5 LFOUT RFIN 32 6 LFIN 7 LOUT 8 LSB 2.2 µ F + PA 2.2 µ F + PA 1µF 3.7KΩ + 0.15 µ F 0.15 µ F LSB 7.68K Ω 0.082 µ F 0.082 µ F LSB 1500pF + 9 LBASS2 10 LBASS1 11 LTRE ROUT 31 RSB 30 RBASS2 29 PT2319 RBASS1 28 RTRE 27 2.2 µ F PA 2.2 µ F PA +1 µ F 0.15 µ F 3.7KΩ 0.15 µ F 0.082 µ F 7.68K Ω 0.082 µ F 1500pF RIN 26 + 1µF + 12 LIN 13 LSELO R5 24 + 14 L5 R4 23 + 15 L4 R3 22 + 16 L3 R2 21 + 17 L2 R1 20 + 18 L1 Vref 19 + RSELO 25 1 µF 1 µF 1 µF 1 µF + 1 µF + 1 µF 1 µF + 1 µF 1 µF + 2.2 µ F 1 µF + PT2319 V1.4 1 µF - 15 - December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 ORDER INFORMATION Valid Part Number PT2319 PT2319 V1.4 Package Type 36 Pins, SSOP, 300mil - 16 - Top Code PT2319 December, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Audio Processor IC PT2319 PACKAGE INFORMATION 36 PINS, SSOP, 300 MIL C GAUGE PLANE L h x 45° E1 E 0.01 INCH C A D 0.004 C Symbol A A1 b c e E E1 h L θ D b Min 0.095 0.008 0.012 0.005 A1 e SEATING PLANE Dimensions In Inches Typ 0.102 0.012 Max 0.110 0.016 0.018 0.010 0.032 Basic 0.395 0.291 0.015 0.020 0 0.620 0.295 0.625 0.420 0.299 0.025 0.040 8 0.630 Notes: 1. Dimension “D” does not include mold flash, protrusions, or gate burrs. 2. Mold flash, protrusions, and gate burrs shall not exceed 0.006 inch. (0.1524mm) per side. 3. Dimension D does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, and gate burrs shall not exceed 0.15 mm (0.006 in) per side. PT2319 V1.4 - 17 - December, 2005