STA306 STMicroelectronics, STA306 Datasheet - Page 28

• Manufacturer Part Number: STA306
• Description: Multimedia Misc AUDIO SYSTEMS
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of STA306

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 20 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STA306
3.36 Coefficient a1 Data Register Bits 15..8 (address 27h)
3.37 Coefficient a1 Data Register Bits 7..0 (address 28h)
3.38 Coefficient b1 Data Register Bits 23..16 (address 29h)
3.39 Coefficient b1 Data Register Bits 15..8 (address 2Ah)
3.40 Coefficient b1 Data Register Bits 7..0 (address 2Bh)
3.41 Coefficient Write Control Register (address 2Ch)
Coefficients for EQ and Bass Management are handled internally in the STA306 via RAM. Access to this RAM
is available to the user via an I2C register interface. A collection of I2C registers is dedicated to this function.
One contains a coefficient base address, five sets of three store the values of the 24-bit coefficients to be written
or that were read, and one contains bits used to control the writing of the coefficient(s) to RAM. The following
are step instructions for reading and writing coefficients.
Reading a coefficient from RAM
28/33
– write 8-bit address to I2C register 1Ch
– ead top 8-bits of coefficient in I2C address 1Dh
– ead middle 8-bits of coefficient in I2C address 1Eh
– ead bottom 8-bits of coefficient in I2C address 1Fh
NAME
NAME
NAME
NAME
NAME
NAME
RST
RST
RST
RST
RST
RST
BIT
BIT
BIT
BIT
BIT
BIT
C4B15
C5B23
C5B15
C4B7
C5B7
D7
D7
D7
D7
D7
D7
0
0
0
0
0
C4B14
C5B22
C5B14
C4B6
C5B6
D6
D6
D6
D6
D6
D6
0
0
0
0
0
C4B13
C5B21
C5B13
C4B5
C5B5
D5
D5
D5
D5
D5
D5
0
0
0
0
0
C4B12
C5B20
C5B12
C4B4
C5B4
D4
D4
D4
D4
D4
D4
0
0
0
0
0
C4B11
C5B19
C5B11
C4B3
C5B3
D3
D3
D3
D3
D3
D3
0
0
0
0
0
C4B10
C5B18
C5B10
C4B2
C5B2
D2
D2
D2
D2
D2
D2
0
0
0
0
0
C5B17
C4B9
C4B1
C5B9
C5B1
WA
D1
D1
D1
D1
D1
D1
0
0
0
0
0
C5B16
C4B8
C4B0
C5B8
C5B0
W1
D0
D0
D0
D0
D0
D0
0
0
0
0
0