QT60486-ASG Atmel, QT60486-ASG Datasheet - Page 24

• Manufacturer Part Number: QT60486-ASG
• Description: IC SENSOR QMATRIX 48CHAN 44TQFP
• Manufacturer: Atmel
• Series: QMatrix™, QProx™r
• Type: Capacitiver

Specifications of QT60486-ASG

• Number Of Inputs/keys: 48 Key
• Resolution (bits): 9, 11 b
• Data Interface: Serial, SPI™, UART
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 25mA
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 44-TQFP, 44-VQFP
• Output Type: Logic
• Interface: UART, SPI
• Input Type: Logic
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• For Use With: 427-1088 - BOARD EVAL QT60486-AS QMATRIX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 427-1110

Table 5.1 Setu
Setups data is sent from the host to the QT in a block of hex data. The block can only be loaded in Setups mode following two 0x 01 commands (page 14). The devices this
datasheet pertain to have the same block length. Refer also to Table 5.4, page 26 for further details, and all of Section 5.
CRC Note: A CRC calculator for Windows is available free of charge from Quantum Research on request.
lQ
Item
10
#
1
2
3
4
5
6
7
8
9
Byte
144
192
240
241
242
244
245
48
96
0
Parameter
Neg thresh
Pos Thresh
Neg Drift Comp
Pos Drift Comp
Normal DI Limit
Fast DI Limit
Neg recal delay
Pos recal delay
Burst Length
AKS
Scope Sync
Neg Hysteresis
Dwell Time
Mains Sync
Burst spacing
Serial rate
Lower signal Limit
LED Function
Host CRC
Block length
ps Block
Symbol
NDRIFT
PDRIFT
MSYNC
SSYNC
DWELL
NHYST
HCRC
NTHR
PTHR
NDIL
FDIL
NRD
PRD
AKS
LED
LSL
BS
SR
BL
Bytes
247
48
48
48
48
48
1
1
2
1
2
NDRIFT = 0..15
PDRIFT = 0..15
Valid range
DWELL = 0..2
MSYNC = 0, 1
NTHR = 0..15
PTHR = 0..15
SSYNC = 0, 1
NHYST = 0..3
NDIL = 0..15
FDIL = 0..15
PRD = 0..15
AKS = 0, 1
BS = 0..11
SR = 0..4
BL = 0..3
0..2047
0..65K
0..254
0..255
Bits
16
16
4
4
4
4
4
4
8
4
2
1
1
4
2
1
4
4
8
Scope
device
device
device
Key
48
48
48
48
48
1
1
1
1
1
1
1
1
1
1
1
24
Default
Value
0x6c
100
10
20
6
2
4
2
5
6
2
0
0
1
1
0
0
0
-
Description
Lower nibble = Neg Threshold - take operand and add 4 to get value
Upper nibble = Pos Threshold - take operand and add 4 to get value
Lower nibble = Neg Drift comp - Via LUT
Upper nibble = Pos Drift comp - Via LUT
Lower nibble = Normal DI Limit, values same as operand (0 = disabled burst)
Upper nibble = Fast DI Limit, values same as operand (0 does not work)
Range is in 0.5 sec increments; 0 = infinite; default = 10s (operand = 20)
Range is { infinite, 0.5...127s }; 255 is illegal to use
Lower nibble = PRD, via LUT, default = 6 (1 sec)
Bits 5, 4: = BL, via LUT, default = 48 (setting =2)
Bit 6 = AKS, 1 - enabled
Bit 7 = Scope sync, 1 = enabled
Lower nibble = Neg hysteresis, all keys; default = 12.5%
Bits 5, 4 = Dwell time, 3 values via LUT, default = 187.5ns
Bits 6 = Mains sync, negative edge, 1 = enabled; default = 0 (off)
Lower nibble = burst spacing; default = 0 (automatic)
Upper nibble = serial rate via LUT - 9600, 19.2K, 38.4K, 57.6K, 115.2K (UART)
Lower limit of acceptable signal; below this value, device declares an error.
The low order byte should be sent first.
Controls what the LED does; see table, below.
CRC-16 of above setups, does NOT include CRC of command itself. The low
order byte should be sent first. See also CRC notes, page 29.
QT60486-AS R8.01/0105
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