Datasheet

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TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
PIN DESCRIPTION (continued)
VFBGA TQFP I/O NAME DESCRIPTION
BALL PIN
Slave select input (active low). Data is not clocked into MOSI unless SS is low.
B2 16 I SS
When SS is high, MISO is high impedance.
B1 17 I SCLK SPI clock input
C2 18 I MOSI SPI data input. Data is clocked in at SCLK rising edge
SPI data output. Data is clocked out at SCLK falling edge. High impedance when
C1 19 O MISO
SS is high.
D2 20 O DAV Data available (active low).
D1 21 I COI Crystal input
E2 22 O COO Crystal output
E1 23 I MCLK Master clock input for audio codec
F2 24 I BCLK I
2
S bit clock
F1 25 I LRCLK I
2
S left/right clock
G1 26 I I2SDIN I
2
S serial data in
G2 27 O I2SDOUT I
2
S serial data out
H1 28 I DVDD Digital voltage supply
J1 29 I DGND Digital ground
J2 30 O KBIRQ Keypad interrupt (active low). Indicates a key has been depressed
K1 31 I RESET Device reset (active high)
K2 32 O R1 Keypad row 1
L2 33 O R2 Keypad row 2
K3 34 O R3 Keypad row 3
L3 35 O R4 Keypad row 4
K4 36 I C1 Keypad column 1
L4 37 I C2 Keypad column 2
K5 38 I C3 Keypad column 3
L5 39 I C4 Keypad column 4
L6 40 I LLINEIN Left-channel analog input to audio codec
L7 41 I RLINEIN Right-channel analog input to audio codec
K7 42 I MICIN Analog input from microphone
L8 43 O MICBIAS Bias voltage output
K8 44 O VCM Common-mode voltage bypass capacitor
L9 45 O AFILTR Right-channel audio ADC antialiasing filter capacitor
K9 46 O AFILTL Left-channel audio ADC antialiasing filter capacitor
L10 47 I VREF+ Audio codec positive reference voltage
K10 48 I VREF- Audio codec negative reference voltage
K11 49 O MONO+ Mono differential output
J10 50 O MONO- Mono differential output
J11 51 O VOUTR Audio right line output
H10 52 O VOUTL Audio left line output
H11 53 I AGND Analog ground
G10 54 I AVDD Analog supply
G11 55 O HPL Headphone amplifier left output
F10 56 O HPR Headphone amplifier right output
F11 57 I HPGND Analog ground for headphone amplifier and touch screen circuitry
E11 58 I X- X- position input
E10 59 I Y- Y- position input
D11 60 I X+ X+ position input
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