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| 型號： | ADAU1961WBCPZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 30/76頁 |
| 文件大小： | 0K |
| 描述： | IC STEREO AUD CODEC LP 32LFCSP |
| 標準包裝： | 1,500 |
| 類型： | 音頻編解碼器 |
| 數(shù)據(jù)接口： | I²C，串行，SPI? |
| 分辨率（位）： | 24 b |
| ADC / DAC 數(shù)量： | 2 / 2 |
| 三角積分調(diào)變： | 無 |
| S/N 比，標準 ADC / DAC (db)： | 98 / 98 |
| 動態(tài)范圍，標準 ADC / DAC (db)： | 96 / 98 |
| 電壓 - 電源，模擬： | 2.97 V ~ 3.63 V |
| 電壓 - 電源，數(shù)字： | 2.97 V ~ 3.63 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 32-LFCSP-EP（5x5） |
| 包裝： | 帶卷 (TR) |
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ADAU1961
Data Sheet
Rev. A | Page 36 of 76
CONTROL PORTS
The ADAU1961 can operate in one of two control modes:
I2C control
SPI control
The ADAU1961 has both a 4-wire SPI control port and a
2-wire I2C bus control port. Both ports can be used to set the
registers. The part defaults to I2C mode, but it can be put into
SPI control mode by pulling the CLATCH pin low three times.
The control port is capable of full read/write operation for all
addressable registers. The ADAU1961 must have a valid master
clock in order to write to all registers except for Register R0
(Address 0x4000) and Register R1 (Address 0x4002).
All addresses can be accessed in both a single-address mode
or a burst mode. The first byte (Byte 0) of a control port write
contains the 7-bit chip address plus the R/W bit. The next two
bytes (Byte 1 and Byte 2) together form the subaddress of the
register location within the ADAU1961. This subaddress must
be two bytes long because the memory locations within the
ADAU1961 are directly addressable and their sizes exceed the
range of single-byte addressing. All subsequent bytes (starting
with Byte 3) contain the data. The number of bytes per word
depends on the type of data that is being written.
The control port pins are multifunctional, depending on the
mode in which the part is operating. Table 19 describes these
multiple functions.
Table 19. Control Port Pin Functions
Pin Name
I2C Mode
SPI Mode
SCL/CCLK
SCL: input clock
CCLK: input clock
SDA/COUT
SDA: open-collector
input/output
COUT: output
ADDR1/CDATA
I2C Address Bit 1: input
CDATA: input
ADDR0/CLATCH
I2C Address Bit 0: input
CLATCH: input
BURST MODE WRITING AND READING
Burst mode addressing, where the subaddresses are automatically
incremented at word boundaries, can be used for writing large
amounts of data to contiguous registers. This increment happens
automatically after a single-word write or read unless a stop condi-
tion is encountered (I2C) or CLATCH is brought high (SPI). A
burst write starts like a single-word write, but following the first
data-word, the data-word for the next immediate address can be
written immediately without sending its two-byte address.
The registers in the ADAU1961 are one byte wide with the
exception of the PLL control register, which is six bytes wide.
The autoincrement feature knows the word length at each
subaddress, so the subaddress does not need to be specified
manually for each address in a burst write.
The subaddresses are autoincremented by 1 following each
read or write of a data-word, regardless of whether there is a
valid register word at that address. Address holes in the register
map can be written to or read from without consequence. In
the ADAU1961, these address holes exist at Address 0x4001,
Address 0x4003 to Address 0x4007, Address 0x402E, and
Address 0x4032 to Address 0x4035. A single-byte write to these
registers is ignored by the ADAU1961, and a read returns a
single byte 0x00.
I2C PORT
The ADAU1961 supports a 2-wire serial (I2C-compatible)
microprocessor bus driving multiple peripherals. Two pins,
serial data (SDA) and serial clock (SCL), carry information
between the ADAU1961 and the system I2C master controller.
In I2C mode, the ADAU1961 is always a slave on the bus,
meaning that it cannot initiate a data transfer. Each slave device
is recognized by a unique address. The address and R/W byte
format is shown in Table 20. The address resides in the first
seven bits of the I2C write. Bits[5:6] of the I2C address for the
ADAU1961 are set by the levels on the ADDR1 and ADDR0
pins. The LSB of the address—the R/W bit—specifies either a
read or write operation. Logic Level 1 corresponds to a read
operation, and Logic Level 0 corresponds to a write operation.
Table 20. ADAU1961 I2C Address and Read/Write Byte Format
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
0
1
0
ADDR1
ADDR0
R/W
The SDA and SCL pins should each have a 2 k pull-up resistor
on the line connected to it. The voltage on these signal lines
should not be higher than IOVDD (3.3 V).
Addressing
Initially, each device on the I2C bus is in an idle state and
monitors the SDA and SCL lines for a start condition and
the proper address. The I2C master initiates a data transfer by
establishing a start condition, defined by a high-to-low transition
on SDA while SCL remains high. This indicates that an address/
data stream follows. All devices on the bus respond to the start
condition and shift the next eight bits (the 7-bit address plus the
R/W bit) MSB first. The device that recognizes the transmitted
address responds by pulling the data line low during the ninth
clock pulse. This ninth bit is known as an acknowledge bit. All
other devices withdraw from the bus at this point and return to
the idle condition.
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| ADAU1961WBCPZ-RL | 功能描述:IC STEREO AUD CODEC LP 32LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標準包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態(tài)范圍，標準 ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| ADAU1962AWBSTZ | 制造商:Analog Devices 功能描述:AUTOMOTIVE HIGH PERFORMANCE 12 DAC - Trays 制造商:Analog Devices 功能描述:IC DAC 80LQFP 制造商:Analog Devices 功能描述:DAC 24 BITS 48KHZ SPI LQFP 制造商:Analog Devices 功能描述:DAC, 24BIT, 192KSPS, LQFP-80, Resolution (Bits):24bit, Sampling Rate:192kSPS, Input Channel Type:Differential, Single Ended, Supply Voltage Range:3.14V to 3.46V, Digital IC Case Style:LQFP, No. of Pins:80, Data Interface:I2C, SPI |
| ADAU1962AWBSTZ-RL | 功能描述:24 Bit Digital to Analog Converter 12 80-LQFP (14x14) 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態(tài):有效 位數(shù):24 數(shù)模轉(zhuǎn)換器數(shù):12 建立時間:- 輸出類型:Voltage - Unbuffered 差分輸出:是 數(shù)據(jù)接口:I2C， SPI 參考類型:內(nèi)部 電壓 - 電源，模擬:3.14 V ~ 3.46 V 電壓 - 電源，數(shù)字:2.25 V ~ 3.46 V INL/DNL（LSB）:- 架構(gòu):三角積分 工作溫度:-40°C ~ 125°C 封裝/外殼:80-LQFP 供應(yīng)商器件封裝:80-LQFP（14x14） 標準包裝:1,000 |
| ADAU1962WBSTZ | 功能描述:24 Bit Digital to Analog Converter 12 80-LQFP (14x14) 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態(tài):有效 位數(shù):24 數(shù)模轉(zhuǎn)換器數(shù):12 建立時間:- 輸出類型:Voltage - Unbuffered 差分輸出:是 數(shù)據(jù)接口:I2C， SPI 參考類型:內(nèi)部 電壓 - 電源，模擬:3.14 V ~ 3.46 V 電壓 - 電源，數(shù)字:2.25 V ~ 3.46 V INL/DNL（LSB）:- 架構(gòu):三角積分 工作溫度:-40°C ~ 125°C 封裝/外殼:80-LQFP 供應(yīng)商器件封裝:80-LQFP（14x14） 標準包裝:90 |
| ADAU1962WBSTZRL | 功能描述:24 Bit Digital to Analog Converter 12 80-LQFP (14x14) 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態(tài):有效 位數(shù):24 數(shù)模轉(zhuǎn)換器數(shù):12 建立時間:- 輸出類型:Voltage - Unbuffered 差分輸出:是 數(shù)據(jù)接口:I2C， SPI 參考類型:內(nèi)部 電壓 - 電源，模擬:3.14 V ~ 3.46 V 電壓 - 電源，數(shù)字:2.25 V ~ 3.46 V INL/DNL（LSB）:- 架構(gòu):三角積分 工作溫度:-40°C ~ 125°C 封裝/外殼:80-LQFP 供應(yīng)商器件封裝:80-LQFP（14x14） 標準包裝:1,000 |
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