參數(shù)資料
型號： PCM3168ATPAPRQ1G4
廠商： Texas Instruments
文件頁數(shù)： 55/68頁
文件大?。?/td> 0K
描述： IC 24-BIT AUDIO CODEC 64-HTQFP
標(biāo)準(zhǔn)包裝： 1,000
類型： 音頻編解碼器
數(shù)據(jù)接口： 串行
分辨率（位）： 24 b
ADC / DAC 數(shù)量： 6 / 8
三角積分調(diào)變： 是
S/N 比，標(biāo)準(zhǔn) ADC / DAC (db)： 107 / 112（差分），104 / 112（單端）
動態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db)： 107 / 112（差分），104 / 112（單端）
電壓 - 電源，模擬： 4.5 V ~ 5.5 V
電壓 - 電源，數(shù)字： 3 V ~ 3.6 V
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 64-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝： 64-HTQFP（10x10）
包裝： 帶卷 (TR)
DESIGN AND LAYOUT CONSIDERATIONS
Power-Supply Pins (VCCAD1/2, VCCDA1/2, and VDD1/2)
Grounding (AGNDAD1/2, AGNDDA1/2, and DGND1/2)
VIN1±, VIN2±, VIN3±, VIN4±, VIN5±, and VIN6± Pins
VCOMAD and VCOMDA Pins
VREFAD1/2 Pins
VOUT1±, VOU2±, VOUT3±, VOUT4±, VOUT5±, VOUT6±, VOU7±, and VOUT8± Pins
www.ti.com ......................................................................................................................................................................................... SBAS452 – SEPTEMBER 2008
The digital and analog power-supply pins of the PCM3168A and PCM3168A-Q1 should be bypassed to the
corresponding ground pins with 1-
F ceramic capacitors placed as close to the pins as possible. Each
power-supply line (VCC, VDD) to the PCM3168A and PCM3168A-Q1 should be bypassed to the corresponding
ground pins with 10-
F electrolytic capacitors to maximize the dynamic performance of the ADC and DAC.
Although the PCM3168A and PCM3168A-Q1 have two power lines to maximize the potential of dynamic
performance, using one common source (for instance, a +5-V power supply for VCC and a +3.3-V power supply
for VDD generated from one common source) is recommended to avoid unexpected power-supply trouble such
as latch-up or incorrect power-supply conditions. Also, simultaneous power-on/off of VCC and VDD is
recommended to avoid unexpected transient responses in outputs, though the power-supply sequence of VCC
and VDD is not specified in the operation and absolute maximum ratings point of view.
To maximize the dynamic performance of the PCM3168A and PCM3168A-Q1, the analog and digital grounds
are not connected internally. These pins should have very low impedances to avoid digital noise and signal
components feeding back into the analog ground. All ground pins should be connected directly to each other
under the part, and the device should be connected to the analog ground of the application, as with acceptable
analog layout practices; this layout reduces the potential of noise problems.
In case of direct interface to VINx±, 1-
F electrolytic capacitors are recommended because the ac-coupling
capacitor (which gives a 2-Hz HPF corner frequency and 47
and 0.1
F to 470 and 0.001 F differential
LPF) is recommended as the anti-aliasing filter that gives a 160-kHz LPF corner frequency. If signal source
impedance is not enough (too low) or input line length to the VINx± is not enough (too short), insertion of an
analog front-end buffer (see Figure 59 to Figure 61) is recommended to maximize the dynamic performance. The
voltage coefficient of the capacitor for an anti-aliasing filter should be considered to maximize the THD
performance. A film-type capacitor is recommended; if a ceramic capacitor is used, a relatively higher voltage
type is recommended.
There are three ways to terminate any unused input pins. First, terminate these pins to AGNDAD with 0.001-
F
to 1-
F capacitors. This termination is applied on unused pins whose channels are configured in single-ended
mode. The second form of termination is to connect the positive (+) pin and negative (–) pins together and
terminating these to AGNDAD with 0.001-
F to 1-F capacitors. This option applies to unused pins with channels
that are configured in differential mode. The last termination method is to terminat the pins directly to VCOMAD;
this option can be applied on unused pins with unused channels combined into two channels that are then
configured in power-save mode.
10-
F electrolytic capacitors are recommended between VCOMAD and AGNDAD, and VCOMDA and AGNDDA
to ensure a low source impedance of ADC and DAC common voltages. These capacitors should be located as
close to each pin as possible to reduce dynamic errors on the ADC and DAC common voltages.
10-
F electrolytic capacitors are recommended between VREFAD1/2 and AGNDAD to ensure low source
impedances of ADC references. These capacitors should be located as close to each pin as possible to reduce
dynamic errors on ADC references.
The differential to single-ended buffer with post LPF can be directly connected (without capacitors) to these
output pins (see Figure 63), thereby minimizing the use of coupling capacitors for the 2-VRMS outputs. The op
amp and resistors should be determined with consideration of degrading some performance through this
differential to single-ended and LPF buffer; there is about 1.5-dB degradation seen in the examples of Figure 62
Copyright 2008, Texas Instruments Incorporated
59
Product Folder Link(s): PCM3168A PCM3168A-Q1
相關(guān)PDF資料
PDF描述
PI6C20400LE IC CLOCK BUFF DIFF 28-TSSOP
PI6C21200VE IC 1:12 CLOCK DVR PCI-EX 56-SSOP
PI6C410MAE IC CLK GEN INTEL PCI-EX 56-TSSOP
PI6C557-03LE IC PCIE CLOCK GENERATIOR 16TSSOP
PI6C557-05LE IC CLOCK GENERATOR 20-TSSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM3168TPAPRQ1 制造商:Texas Instruments 功能描述:
PCM-318 制造商:Panduit Corp 功能描述:
PCM-32 功能描述:電線鑒定 1.5" VINYL CLOTH #32 RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in
PCM-320 制造商:Panduit Corp 功能描述:
PCM3201 制造商:AAEON Technology Inc 功能描述:PC/104 ALS120 SOUND MODULE
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*