Figure - 13 Coe-RAM " />
參數(shù)資料
型號： IDT821054PQF
廠商： IDT, Integrated Device Technology Inc
文件頁數(shù)： 38/45頁
文件大?。?/td> 0K
描述： IC PCM CODEC QUAD MPI 64-PQFP
標(biāo)準(zhǔn)包裝： 84
類型： PCM 編解碼器/濾波器
數(shù)據(jù)接口： PCM 音頻接口
ADC / DAC 數(shù)量： 4 / 4
三角積分調(diào)變： 無
電壓 - 電源，模擬： 4.75 V ~ 5.25 V
電壓 - 電源，數(shù)字： 4.75 V ~ 5.25 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 64-QFP
供應(yīng)商設(shè)備封裝： 64-PQFP（14x14）
包裝： 管件
其它名稱： 821054PQF
43
IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
INDUSTRIAL TEMPERATURE RANGE
9
APPENDIX: IDT821054 COE-RAM MAPPING
Figure - 13 Coe-RAM Mapping
Generally, 6 bits of address are needed to locate each word of the 40 Coe-RAM words. In the IDT821054, the 40 words of Coe-RAM are divided
into 5 blocks with 8 words per block, so, only 3 address bits are needed to locate each of the block. When the address of a Coe-RAM block (b[2:0]) is
specified in a Coe-RAM command, all 8 words of this block will be addressed automatically, with the highest order word first (The IDT821054 will count
down from '111' to '000' so that it accesses the 8 words successively). Refer to “3.1.4 Addressing the Coe-RAM” for details.
The address assignment for the 40 words of Coe-RAM is as shown in Table - 5. The number in the “Address” column is the actual address of each
Coe-RAM word. As the IDT821054 handles the lower 3 bits of address automatically, only the higher 3 bits of address (in bold style) are needed for a
Coe-RAM Command. It should be noted that, when addressing the GRX RAM, the FRR RAM will be addressed at the same time.
Table - 5 Coe-RAM Address Allocation
Block # Word #
Address
Function
Block # Word # Address
Function
5
39
100,111
GRX RAM
3
19
010,011
GIS RAM
38
100,110
FRR RAM
18
010,010
37
100,101
17
010,001
36
100,100
16
010,000
35
100,011
2
15
001,111
ECF RAM
34
100,010
14
001,110
33
100,001
13
001,101
32
100,000
12
001,100
4
31
011,111
GTX RAM
11
001,011
30
011,110
FRX RAM
10
001,010
29
011,101
9
001,001
28
011,100
8
001,000
27
011,011
1
7
000,111
IMF RAM
26
011,010
6
000,110
25
011,001
5
000,101
24
011,000
4
000,100
3
23
010,111
Amplitude Coefficient of Tone Generator 1
3
000,011
22
010,110
Frequency Coefficient of Tone Generator 1
2
000,010
21
010,101
Amplitude Coefficient of Tone Generator 0
1
000,001
20
010,100
Frequency Coefficient of Tone Generator 0
0
000,000
b[2:0] of a Coe-RAM
Command
Word #
000
001
010
011
100
7
0
15
8
23
16
31
24
39
32
Block #
5
4
3
2
1
GTX RAM
FRX RAM
ECF RAM
IMF RAM
TONE RAM
GIS RAM
GRX RAM
FRR RAM
Channel2
Channel3
Channel4
Channel1
相關(guān)PDF資料
PDF描述
IDT82V3001APVG8 IC PLL WAN W/SGL REF INP 56-SSOP
IDT82V3010PVG IC PLL WAN 51/E1/OC3 DUAL 56SSOP
IDT82V3011PVG IC PLL WAN T1/E1/OC3 SGL 56-SSOP
IDT82V3012PVG8 IC PLL WAN T1/E1/OC3 DUAL 56SSOP
IDT82V3155PVG IC PLL WAN T1/E1/OC3 DUAL 56SSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT821054PQFG 功能描述:IC PCM CODEC QUAD MPI 64-PQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)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(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動態(tài)范圍，標(biāo)準(zhǔn) 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)
IDT821064 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:QUAD PROGRAMMABLE PCM CODEC WITH GCI INTERFACE
IDT821064PQF 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:QUAD PROGRAMMABLE PCM CODEC WITH GCI INTERFACE
IDT821068 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:OCTAL PROGRAMMABLE PCM CODEC
IDT821068PX 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:OCTAL PROGRAMMABLE PCM CODEC
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(jìn)入我的后臺，查看報(bào)價(jià)

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*