IC TOUCH SCREEN 12BIT SER 64TQFP

TSC2300IPAGR

Manufacturer Part NumberTSC2300IPAGR
DescriptionIC TOUCH SCREEN 12BIT SER 64TQFP
ManufacturerTexas Instruments
TypeResistive, Audio Codec, Headphone Amp
TSC2300IPAGR datasheet
 


Specifications of TSC2300IPAGR

Touch Panel Interface4-WireNumber Of Inputs/keys1, 4 x 4 Keypad
Resolution (bits)12 bData InterfaceSerial, SPI™
Data Rate/sampling Rate (sps, Bps)125kVoltage ReferenceExternal, Internal
Voltage - Supply2.7 V ~ 3.6 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case64-TQFP, 64-VQFP
Lead Free Status / RoHS StatusLead free / RoHS CompliantCurrent - Supply-
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PROGRAMMABLE TOUCH SCREEN CONTROLLER
FEATURES
SPI™ Serial Interface
Touch screen Controller
4-Wire Touch Screen Interface
Internal Detection of Screen Touch and
Keypad Press
Touch Pressure Measurement
Ratiometric Conversion
Programmable 8, 10 or 12 Bit Resolution
Programmable Sampling Rates Up to 125
kHz
Direct Battery Measurement (0 to 6 V)
On-Chip Temperature Measurement
4-by-4 Keypad Interface With
Programmable De-bounce
Integrated Touch Screen Processor
Reduces Host CPU Interrupts and
Overhead
Internal Timing Control With Programmable
Delays
Audio Codec
20-Bit Delta-Sigma ADC/DAC
Dynamic Range: 98 dB
Sampling Rate Up To 48 kHz
2
I
S Serial Interface
Full Power Down Control
On-Chip Crystal Oscillator
6 GPIO Pins
Single 2.7-V to 3.6-V Supply
64-pin TQFP Package
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
WITH AUDIO CODEC
APPLICATIONS
Personal Digital Assistants
Cellular Phones
MP3 Players
Internet Appliances
Smartphones
DESCRIPTION
The TSC2300 is a highly integrated PDA analog
interface circuit. It contains a complete 12-bit A/D
resistive touch screen converter including drivers, touch
pressure measurement capability, keypad controller and
8-bit D/A converter output for LCD contrast control. The
TSC2300 offers programmable resolution of 8, 10, and
12 bits and sampling rates up to 125 kHz to
accommodate different screen sizes. The TSC2300
interfaces to the host controller through a standard SPI
serial interface.
The TSC2300 features a high-performance 20-bit,
48-ksps audio codec with highly integrated analog
functionality. The audio portion of the TSC2300 contains
microphone input with built-in pre-amp and microphone
bias circuit, an auxiliary stereo analog input, a stereo
line-level output, a differential mono line-level output,
and a stereo headphone amplifier output. The digital
audio data is transferred through a standard I
interface.
The TSC2300 also offers two battery measurement
inputs capable of battery voltages up to 6 V, while
operating at a supply voltage of only 2.7 V. It also has an
on-chip temperature sensor capable of reading 0.3°C
resolution. The TSC2300 is available in a 64-lead TQFP.
TSC2300
SLAS372 — NOVEMBER 2002
US Patent No. 6246394
SPI is a trademark of Motorola.
Copyright © 2002, Texas Instruments Incorporated
2
S

TSC2300IPAGR Summary of contents

  • Page 1

    ... Single 2.7-V to 3.6-V Supply • 64-pin TQFP Package Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty ...

  • Page 2

    TSC2300 SLAS372 — NOVEMBER 2002 AVDD–1V AVDD 20 k VCM 20 k AGND Mute, 0db, 6dB, 12dB MICIN RLINEIN +12dB to –35dB 0.5dB steps LLINEIN MONO+ MONO– VREF+ VREF– HPVDD Headphone HPGND Driver HPR VOUTR VOUTL HPL Headphone Driver DACSET ...

  • Page 3

    ... PACKAGE SPECIFICATION DESIGNATOR TEMPERATURE RANGE PAG -40°C to +85°C (1) TSC2300 SLAS372 — NOVEMBER 2002 ORDERING TRANSPORT MEDIA NUMBER TSC2300IPAG Trays TSC2300IPAGR Tape and Reel TSC2300 4 V ±0 ( ( -40°C to 125°C -55°C to 150°C 150°C 260°C ...

  • Page 4

    TSC2300 SLAS372 — NOVEMBER 2002 ELECTRICAL CHARACTERISTICS At 25°C, HPV = +3 PARAMETER AUXILARY ANALOG INPUTS Input voltage range Input capacitance Input leakage current BATTERY MONITOR INPUT Input voltage range Input ...

  • Page 5

    ELECTRICAL CHARACTERISTICS (continued) At 25°C, HPV = +3 PARAMETER HEADPHONE DRIVER Output power per channel Signal-to-noise ratio, A-weighted Total harmonic distortion D/A CONVERTER Output current range Resolution VOLTAGE REFERENCE Voltage ...

  • Page 6

    TSC2300 SLAS372 — NOVEMBER 2002 MONO+ 49 MONO– 50 VOUTR 51 VOUTL 52 AGND 53 AVDD 54 HPL 55 HPR 56 HPGND 57 X– ...

  • Page 7

    PIN DESCRIPTION (continued) PIN I/O NAME DESCRIPTION 15 I DGND Digital ground Slave select input (active low). Data is not clocked into DIN unless SS is low. When SS is high, MOIS is high impedance. 17 ...

  • Page 8

    TSC2300 SLAS372 — NOVEMBER 2002 PIN DESCRIPTION (continued) PIN I/O NAME DESCRIPTION position input position input 62 I HPVDD Analog supply for headphone amplifier and touch screen circuitry 63 I AUX1 SAR ...

  • Page 9

    TIMING CHARACTERISTICS (1) (2) All specifications typical at -40°C to +85°C, +V PARAMETER SCLK period Enable lead time Enable lag time Sequential transfer delay Data setup time Data hold time (inputs) Data hold time (outputs) Slave access time Slave ...

  • Page 10

    TSC2300 SLAS372 — NOVEMBER 2002 +25° +3 CHANGE IN GAIN ERROR vs TEMPERATURE 1 0.5 0 –0.5 –1 –1.5 –2 – 100 Temperature (5C) Figure 1 TOUCH SCREEN DRIVER ...

  • Page 11

    TEMP1 DIODE VOLTAGE vs TEMPERATURE 750 700 650 600 550 500 450 400 –50 50 100 0 Temperature (5C) Figure 10 SIGNAL-TO-NOISE RATIO OF DAC (LINEOUT) vs TEMPERATURE 99 98.875 98.75 98.625 98.5 98.375 98.25 98.125 98 –60 –40 ...

  • Page 12

    TSC2300 SLAS372 — NOVEMBER 2002 SIGNAL-TO-NOISE RATIO OF BYPASS PATH vs TEMPERATURE 102 101 100 –60 –40 – 100 Temperature (5C) Figure 19 1.25-V REFERENCE vs SUPPLY VOLTAGE 1.2005 1.2004 1.2003 ...

  • Page 13

    DAC MAXIMUM CURRENT vs SUPPLY VOLTAGE 1.0899 1.0878 1.0857 1.0836 2.5 3 3.5 Vdd (V) Figure 28 INTEGRAL NONLINEARITY MINIMUM vs SUPPLY VOLTAGE –1.5 –1.75 –2 –2.25 –2.5 –2.75 –3 2.5 3 3.5 Vdd (V) Figure 31 TOTAL HARMONIC ...

  • Page 14

    TSC2300 SLAS372 — NOVEMBER 2002 SIGNAL-TO-NOISE RATIO OF ADC (LINEIN) vs SUPPLY VOLTAGE 2.5 3 3.5 Vdd (V) Figure 37 TOTAL HARMONIC DISTORTION OF BYPASS PATH vs SUPPLY VOLTAGE –98 –99 –100 ...

  • Page 15

    The TSC2300 is an analog interface circuit for human interface devices. A register-based architecture eases integration with microprocessor-based systems through a standard SPI bus. All peripheral functions are controlled through the registers and onboard state machines. The TSC2300 consists ...

  • Page 16

    TSC2300 SLAS372 — NOVEMBER 2002 MICROPHONE JACK HEADPHONE JACK to 220 F MONO AMP Line Outputs 0 TOUCH SCREEN 0 Auxilliary Inputs Voltage ...

  • Page 17

    OPERATION - TOUCH SCREEN A resistive touch screen works by applying a voltage across a resistor network and measuring the change in resistance at a given point on the matrix where a screen is touched by an input stylus, ...

  • Page 18

    TSC2300 SLAS372 — NOVEMBER 2002 When the touch panel is pressed or touched, and the drivers to the panel are turned on, the voltage across the touch panel often overshoots and then slowly settles (decay) down to a stable dc ...

  • Page 19

    PENIRQ TEMP1 X+ X– Y+ Y– 7 BAT1 V BAT2 5.0 k IN1 IN2 GND Figure 47. Simplified Diagram of the Touch Screen Analog Input Section Data Format The TSC2300 output data is in straight binary format ...

  • Page 20

    TSC2300 SLAS372 — NOVEMBER 2002 Variable Resolution The TSC2300 provides three different resolutions for the A/D converter bits. Lower resolutions are often practical for measurements such as touch pressure. Performing the conversions at lower resolution reduces ...

  • Page 21

    In modes where the TSC2300 needs to detect if the screen is still touched (for example, when doing a PENIRQ-initiated X, Y, and Z conversion), the TSC2300 must reconnect the drivers so that the 50-kΩ resistor is connected again. ...

  • Page 22

    TSC2300 SLAS372 — NOVEMBER 2002 Page Addressing (continued) PG3 PG2 read all the first page of memory, for example, the host processor must send the TSC2300 the command 0x8000 - this ...

  • Page 23

    TSC2300 MEMORY MAP The TSC2300 has several 16-bit registers which allow control of the device as well as providing a location for results from the TSC2300 to be stored until read by the host microprocessor. These registers are separated ...

  • Page 24

    TSC2300 SLAS372 — NOVEMBER 2002 TSC2300 REGISTER OVERVIEW PAGE ADDR REGISTER D15 D14 D13 (HEX) NAME KPDATA K15 ...

  • Page 25

    Register Summary for TSC2300 (continued) PAGE ADDR REGISTER D15 D14 D13 (HEX) NAME 1 14 reserved reserved reserved reserved reserved ...

  • Page 26

    TSC2300 SLAS372 — NOVEMBER 2002 TSC2300 TOUCH SCREEN CONTROL REGISTERS This section describes each of the registers shown in the memory map of Figure 54. The registers are grouped according to the function they control. Note that in the TSC2300, ...

  • Page 27

    Bits [13:10] — AD3 - AD0 A/D Function Select bits. These bits control which input converted, and what mode the converter is placed in. These bits are the same whether reading or writing. See Table 8 ...

  • Page 28

    TSC2300 SLAS372 — NOVEMBER 2002 A/D Conversion Averaging Control (continued) AV1 AV0 data averages data averages data averages Bits[5:4] — CL1, CL0 Conversion Clock Control. These two bits specify the internal ...

  • Page 29

    DAC Power Down. This bit controls whether the DAC is powered up and operational, or powered down. If the DAC is powered down, the AOUT pin neither sinks nor sources current. VALUE DESCRIPTION 0 DAC is powered and operational ...

  • Page 30

    TSC2300 SLAS372 — NOVEMBER 2002 VALUE DESCRIPTION 0 Internal reference is powered at all times 1 Internal reference is powered down between conversions. (default) Note that the PDN bit, in concert with the INT bit, creates a few possibilities for ...

  • Page 31

    Precharge Times (continued) PRE2 PRE1 Bits [2:0] — SNS[2:0] Sense time selection bits. These bits set the amount of time the TSC2300 will wait to sense a screen touch between coordinate axis conversions ...

  • Page 32

    TSC2300 SLAS372 — NOVEMBER 2002 TSC2300 KEYPAD REGISTERS The keypad scanner hardware in the TSC2300 is controlled by two registers: the keypad control register and the keypad mask register. The keypad control register controls general keypad functions such as scanning ...

  • Page 33

    Keypad De-bounce Control (continued) KBDB2 KBDB1 Keypad Mask Register (Page 1, Address 10H) The Keypad Mask register is formatted as follows: BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10 MSB M15 ...

  • Page 34

    TSC2300 SLAS372 — NOVEMBER 2002 SPI Data Available (continued) SDAV DESCRIPTION 0 Touch screen or SAR ADC data is available new data available. (default) Bits [14:0] — Reserved These bits are reserved, and should be written to 0. ...

  • Page 35

    There are three different touch screen conversion modes available in the TSC2300: self-controlled or PENIRQ-Initiated, host-initiated, and host-controlled. These three modes are described below. OPERATION - TOUCH SCREEN MEASUREMENTS Conversion Controlled by TSC2300 Initiated at Touch Detect In this ...

  • Page 36

    TSC2300 SLAS372 — NOVEMBER 2002 Screen Touch Issue Interrupt PENIRQ Is PENSTS =1 Y Start Clock Turn On Drivers: Y+, Y– Panel Voltage Stabilization Done Y Power up ADC Convert Y coordinates N Is Data Avereraging Done Y ...

  • Page 37

    Touch Screen Scan X, Y and Z PENIRQ Initiated Screen Touch Issue Interrupt PENIRQ Host Controlled Is PENSTS =1 Conversion Y Start Clock Turn On Drivers: Y+, Y– Is Panel N Voltage Stabilization Done Y Power ...

  • Page 38

    TSC2300 SLAS372 — NOVEMBER 2002 In this mode, the TSC2300 detects when the touch panel is touched and causes the PENIRQ line to go low. The host recognizes the interrupt request, and then writes to the A/D Converter Control register ...

  • Page 39

    Touch Screen Scan X and Y Host Initiated Screen Touch Issue Interrupt PENIRQ N Is PENSTS =1 Host Writes A/D Converter Control Register Reset PENIRQ Start Clock Turn On Drivers: Y+, Y– Panel Voltage Stabilization Done Y ...

  • Page 40

    TSC2300 SLAS372 — NOVEMBER 2002 Touch Screen Scan X, Y and Z Host Initiated Screen Touch Issue Interrupt PENIRQ Host Is PENSTS =1 Controlled Conversion Host Writes A/D Done Converter Control Register Reset PENIRQ Start Clock Turn ...

  • Page 41

    Touch Screen Scan X Coordinate Host Initiated Screen Touch Issue Interrupt PENIRQ N Is PENSTS =1 Host Writes A/D Converter Control Register Reset PENIRQ N Are Drivers On Y Start Clock Power up ADC Figure 55. X Coordinate Reading ...

  • Page 42

    TSC2300 SLAS372 — NOVEMBER 2002 Touch Screen Scan Y Coordinate Host Initiated Screen Touch Issue Interrupt PENIRQ Is PENSTS =1 Host Writes A/D Converter Control Register Reset PENIRQ Are Drivers On Y Start Clock Power up ADC Convert Y coordinates ...

  • Page 43

    Screen Touch Issue Interrupt PENIRQ Is PENSTS =1 Host Writes A/D Converter Control Register Reset PENIRQ Are Drivers On Start Clock Power up ADC Convert Z1 coordinates Is Data N Avereraging Done Y Store Z1 Coordinates in Z1 Register ...

  • Page 44

    TSC2300 SLAS372 — NOVEMBER 2002 The process is then repeated for Y and Z coordinates. The processes are outlined in Figure 58 through Figure 60. The time needed to convert any single coordinate under host control (not including the time ...

  • Page 45

    Screen Touch Issue Interrupt PENIRQ Go To Host Controlled N Is PENSTS =1 Conversion Done Host Writes A/D Converter Control Register Reset PENIRQ Turn On Drivers: Y+, Y– Done Figure 59. Y Coordinate Reading Controlled by Host. Host Controlled ...

  • Page 46

    TSC2300 SLAS372 — NOVEMBER 2002 Issue Interupt PENIRQ Is PENSTS =1 Host Writes A/D Converter Control Reset PENIRQ Turn On Drivers: X+, X– Host Writes A/D Converter Control Register Reset PENIRQ Are Drivers On Start Clock Power up ADC Convert ...

  • Page 47

    In some applications, such as estimating remaining battery life or setting RAM refresh rate, a measurement of ambient temperature is required. The temperature measurement technique used in the TSC2300 relies on the characteristics of a semiconductor junction operating at ...

  • Page 48

    TSC2300 SLAS372 — NOVEMBER 2002 N Figure 62. Single Temperature Measurement Mode 48 Temperature Input 1 Host Writes A/D Converter Control Register Start Clock Power Up Reference (Including Programmed Delay) Power up ADC Convert Temperature Input 1 Is Data Avereraging ...

  • Page 49

    N Figure 63. Additional Temperature Measurement for Differential Temperature Reading OPERATION - BATTERY MEASUREMENT An added feature of the TSC2300 is the ability to monitor the battery voltage which may be much larger than the supply voltage of the ...

  • Page 50

    TSC2300 SLAS372 — NOVEMBER 2002 Battery to 6.0 V Battery 0. 3.0 V Figure 64. VBAT Example Battery Measurement Functional Block Diagrams, VDD = 2 Flowcharts which detail the process of making a battery input reading ...

  • Page 51

    N This assumes the reference control register is configured to power up the internal reference when needed. Battery Input 1 Host Writes A/D Converter Control Register Start Clock Power Up Reference (Including Delay) Power up ADC Convert Battery Input ...

  • Page 52

    TSC2300 SLAS372 — NOVEMBER 2002 N OPERATION - AUXILIARY MEASUREMENT The two auxiliary voltage inputs can be measured in similar fashion to the battery inputs, with no voltage dividers. The input range of the auxiliary inputs ...

  • Page 53

    Host Writes A/D Converter Control Power Up Reference (Including Delay) Power up ADC Convert Auxiliary N Store Auxiliary Input 1 in AUX1 Register Figure 67. AUX1 Measurement Process Auxiliary Input 1 Register Start Clock Power Down ADC Power Down ...

  • Page 54

    TSC2300 SLAS372 — NOVEMBER 2002 N OPERATION - PORT SCAN If measurements of all the battery and auxiliary inputs are required, the port scan mode can be used. This mode causes the TSC2300 to sample and convert both battery inputs ...

  • Page 55

    N N OPERATION - D/A CONVERTER The TSC2300 has an onboard 8-bit D/A converter, configured as shown in Figure 70. This configuration yields a current sink (AOUT) controlled by the value of a resistor connected between the ARNG pin ...

  • Page 56

    TSC2300 SLAS372 — NOVEMBER 2002 Figure 70. D/A Converter Configuration This circuit is designed for flexibility in the output voltage at the VBIAS point shown in Figure 70 to accommodate the widely varying requirements for LCD contrast control bias. V+ ...

  • Page 57

    For example, consider an LCD that has a contrast control voltage VBIAS that can range from that draws 400 µA when used, and has an available 5-V supply. Note that this is higher than ...

  • Page 58

    TSC2300 SLAS372 — NOVEMBER 2002 The TSC2300 contains a keypad interface which is suitable for use with matrix keypads keys. A control register, the keypad control register, is used to set the scan rate for ...

  • Page 59

    The common-mode voltage, VCM, used by the audio section can be powered up independently by the AVPD bit (Bit 14, Reg 05h, Pg 2). Because the audio outputs are biased to this voltage, this voltage is slowly ramped up ...

  • Page 60

    TSC2300 SLAS372 — NOVEMBER 2002 FORMAT 0 DAC: 16–Bit, MSB–First, Right–Justified LRCIN BCKIN I2SDIN 16 1 ADC: 16–Bit, MSB–First, Left–Justified LRCIN BCKIN I2SDOUT MSB FORMAT 1 DAC: 20–Bit, MSB–First, Right–Justified LRCIN BCKIN I2SDIN ...

  • Page 61

    – – LRCIN BCKIN I2SDIN ...

  • Page 62

    TSC2300 SLAS372 — NOVEMBER 2002 Audio Data Converters The TSC2300 includes a stereo 20-bit audio DAC and a mono 20-bit audio ADC. The DAC and ADC are both capable of operating at 8 kHz, 11.025 kHz, 12 kHz, 16 kHz, ...

  • Page 63

    Conventional audio DAC designs utilize high-order analog filtering to remove quantization noise that falls within the audio band when operating at low sample rates. Here, however, the increased oversampling at low sample rates keeps the noise above 20 kHz, ...

  • Page 64

    TSC2300 SLAS372 — NOVEMBER 2002 0 –0.5 –1 –1.5 –2 –2.5 –3 –3.5 1 Figure 77. Transfer Function of Default Bass-Boost Filter Coefficients at 48-kHz Sampling Rate. Audio ADC The audio ADC consists of a 4th order multi-bit analog delta-sigma ...

  • Page 65

    Audio Bypass Mode In audio bypass mode, the L/RLINEIN analog inputs can be routed to mix with the DAC output and play to the line-outputs (VOUTL/R) as well as the headphone outputs (HPL/R) and mono output (MONO+/-). This path ...

  • Page 66

    TSC2300 SLAS372 — NOVEMBER 2002 TSC2300 AUDIO CONTROL REGISTERS TSC2300 Audio Control Register (Page 2, Address 00H) The audio control register of the TSC2300 controls the digital audio interface, the microphone preamp gain, the record multiplexer settings, and the ADC ...

  • Page 67

    Microphone Input Gain Selection (continued) MICG1 MICG0 DESCRIPTION 0 0 MIC gain=0 dB (default MIC gain MIC gain MIC gain=12 dB Bits [7:6] MCLK1-MCLK0 Master Clock Ratio. These two bits select ...

  • Page 68

    TSC2300 SLAS372 — NOVEMBER 2002 Format Selection (continued) I2SFM1 I2SFM0 1 1 ADC VOLUME CONTROL REGISTER (Page 2, Address 01h) The ADC volume control register controls the programmable gain amplifier (PGA) on the input to the audio ...

  • Page 69

    Bit 15 DAMUL Left DAC Mute. This bit is used to mute the input to the Left Channel DAC. The user can set this bit to mute the DAC while retaining the previous gain setting in DAVL[6:0], so that ...

  • Page 70

    TSC2300 SLAS372 — NOVEMBER 2002 BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 MSB BPMUL BPVL6 BPVL5 BPVL4 BPVL3 Bit 15 BPMUL Left Channel Audio Bypass Mute. This bit is used to mute the bypass path from the ...

  • Page 71

    BPVR[6:0] = 0d-31d = mute KEYCLICK CONTROL REGISTER (Page 2, Address 04H) The Keyclick Control Register of the TSC2300 controls the setup of the internal keyclick sound generator. This register is used to initiate and set the frequency, amplitude, ...

  • Page 72

    TSC2300 SLAS372 — NOVEMBER 2002 KCLN[3:0] = 0001 = 4 periods of the keyclick sound (default) KCLN[3:0] = 0010 = 6 periods of the keyclick sound KCLN[3:0] = 0011 = 8 periods of the keyclick sound KCLN[3:0] = 1111 = ...

  • Page 73

    Audio Power Down. This bit powers down the entire audio section if set, regardless of the settings of the other bits in this register. When this bit is cleared, the individual sections of the audio codec still need to ...

  • Page 74

    TSC2300 SLAS372 — NOVEMBER 2002 Bit 5 OSCC Crystal Oscillator Control. The TSC2300 includes a crystal oscillator that can be used to generate the signal needed for the MCLK input, or any other purpose. However not necessary to ...

  • Page 75

    Digital-Effects Filter Control (continued) BASS DESCRIPTION 0 The digital-effects filter is off (default). 1 The digital-effects filter is on. Bit 0 DEEMP De-emphasis control. This bit turns ON/OFF the de-emphasis function. DEEMP DESCRIPTION 0 De-emphasis is off (default). 1 ...

  • Page 76

    TSC2300 SLAS372 — NOVEMBER 2002 DAC Bass-Boost Coefficient Registers (continued) ADDRESS 07h 08h 09h 0Ah 0Bh 0Ch 0Dh 0Eh 0Fh 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h 1Ah LAYOUT The following layout suggestions should provide optimum performance ...

  • Page 77

    The TSC2300 SAR converter architecture offers no inherent rejection of noise or voltage variation in regards to using an external reference input. This is of particular concern when the reference input is tied to the power supply. Any noise ...

  • Page 78

    TSC2300 SLAS372 — NOVEMBER 2002 PAG (S-PQFP-G64) 0, 7,50 TYP 10,20 SQ 9,80 12,20 SQ 11,80 1,05 0,95 1,20 MAX (A) All linear dimensions are in millimeters. (B) This drawing is subject to change without notice. ...

  • Page 79

    PACKAGING INFORMATION Orderable Device (1) Package Type Package Status TSC2300IPAG ACTIVE TQFP TSC2300IPAGG4 ACTIVE TQFP (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will ...

  • Page 80

    PAG (S-PQFP-G64) 0, 7,50 TYP 10,20 SQ 9,80 12,20 SQ 11,80 1,05 0,95 1,20 MAX NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Falls within JEDEC ...

  • Page 81

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...