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PCM55JP PDF预览

PCM55JP

更新时间： 2024-02-20 05:38:33
品牌 Logo 应用领域
德州仪器 - TI 输入元件光电二极管转换器
页数 文件大小 规格书
9页 88K
描述
PARALLEL, WORD INPUT LOADING, 3us SETTLING TIME, 16-BIT DAC, PDSO24, MINI, PLASTIC, SOIC-24

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PCM55JP 技术参数

是否Rohs认证：不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：PLASTIC, SOIC-24
针数：24Reach Compliance Code：compliant
ECCN代码：3A001.A.5.BHTS代码：8542.39.00.01
风险等级：5.81Is Samacsys：N
最大模拟输出电压：3 V最小模拟输出电压：-3 V
转换器类型：D/A CONVERTER输入位码：COMPLEMENTARY BINARY, COMPLEMENTARY 2'S COMPLEMENT, COMPLEMENTARY OFFSET BINARY
输入格式：PARALLEL, WORDJESD-30 代码：R-PDSO-G24
JESD-609代码：e0长度：15.5 mm
湿度敏感等级：1标称负供电电压：-5 V
位数：16功能数量：1
端子数量：24最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP24,.5
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：235电源：+-5 V
认证状态：Not Qualified座面最大高度：2.5 mm
标称安定时间 (tstl)：3 µs子类别：Other Converters
最大压摆率：45 mA标称供电电压：5 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：TIN LEAD端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：8.4 mm
Base Number Matches：1

PCM55JP 数据手册

 浏览型号PCM55JP的Datasheet PDF文件第1页浏览型号PCM55JP的Datasheet PDF文件第2页浏览型号PCM55JP的Datasheet PDF文件第3页浏览型号PCM55JP的Datasheet PDF文件第5页浏览型号PCM55JP的Datasheet PDF文件第6页浏览型号PCM55JP的Datasheet PDF文件第7页 
the line (Figure 1) about the bipolar zero point and offset  
drift shifts the line left or right over the operating tempera-  
ture range. Most of the offset and gain drift with temperature  
or time is due to the drift of the internal reference zener  
diode. The converter is designed so that these drifts are in  
opposite directions. This way, the bipolar zero voltage is  
virtually unaffected by variations in the reference voltage.  
DISCUSSION OF  
SPECIFICATIONS  
The PCM54 and PCM55 are specified to provide critical  
performance criteria for a wide variety of applications. The  
most critical specifications for a D/A converter in audio  
applications are total harmonic distortion, differential linear-  
ity error, bipolar zero error, parameter shifts with time and  
temperature, and settling time effects on accuracy.  
DIGITAL INPUT CODES  
The PCM54 and PCM55 accept complementary digital  
input codes in any of three binary formats (CSB, unipolar; or  
COB, bipolar; or CTC, Complementary Two’s Comple-  
ment, bipolar). See Table II.  
The PCM54 and PCM55 are factory-trimmed and tested for  
all critical key specifications.  
The accuracy of a D/A converter is described by the transfer  
function shown in Figure 1. Digital input to analog output  
relationship is shown in Table I. The errors in the D/A  
converter are combinations of analog errors due to the linear  
circuitry, matching and tracking properties of the ladder and  
scaling networks, power supply rejection, and reference  
errors. In summary, these errors consist of initial errors  
including gain, offset, linearity, differential linearity, and  
power supply sensitivity. Gain drift over temperature rotates  
ANALOG OUTPUT  
Digital  
Input  
Codes  
Complementary  
Straight Binary  
(CSB)  
Complementary  
Offset Binary  
(COB)  
Complementary  
Two’s Complement  
(CTS)(1)  
0000H  
7FFFH  
8000H  
+Full Scale  
+1/2 Full Scale  
+1/2 Full Scale  
–1LSB  
+Full Scale  
Bipolar Zero  
–1LSB  
–1LSB  
–Full Scale  
+Full Scale  
FFFFH  
Zero  
–Full Scale  
Bipolar Zero  
NOTE: (1) Invert the MSB of the COB code with an external inverter to obtain  
CTC code.  
0000…0000  
Gain  
TABLE II. Digital Input Codes.  
Drift  
0000…0001  
0111…1101  
0111…1110  
0111…1111  
1000…0000  
1000…0001  
1111…1110  
1111…1111  
All Bits  
On  
BIPOLAR ZERO ERROR  
Initial Bipolar Zero (BPZ) error (Bit 1 “ON” and all other  
bits “OFF”) is the deviation from 0V out and is factory-  
trimmed to typically ±10mV at +25°C.  
Bipolar  
Zero  
Offset  
Drift  
DIFFERENTIAL LINEARITY ERROR  
Differential Linearity Error (DLE) is the deviation from an  
ideal 1LSB change from one adjacent output state to the  
next. DLE is important in audio applications because exces-  
sive DLE at bipolar zero (at the “major carry”) can result in  
audible crossover distortion for low level output signals.  
Initial DLE on the PCM54 and PCM55 is factory-trimmed  
to typically ±0.001% of FSR. This error is adjustable to zero  
using the circuit shown in the connection diagram (PCM54  
only).  
(+FSR/2) –1LSB  
Analog Output  
* See Table I for digital code definitions.  
–FSR/2  
FIGURE 1. Input vs Output for an Ideal Bipolar D/A  
Converter.  
VOLTAGE OUTPUT MODE  
Analog Output  
Unipolar(1)  
Bipolar  
15-Bit  
Digital Input Code  
16-Bit  
15-Bit  
14-Bit  
16-Bit  
14-Bit  
One LSB  
0000H  
FFFFH  
(µV)  
(V)  
(V)  
91.6  
+5.99991  
0
183  
+5.99982  
0
366  
+5.99963  
0
91.6  
+2.99991  
–3.0000  
183  
+2.99982  
–3.0000  
366  
+2.99963  
–3.0000  
CURRENT OUTPUT MODE  
Analog Output  
Unipolar  
Bipolar  
15-Bit  
Digital Input Code  
16-Bit  
15-Bit  
14-Bit  
16-Bit  
14-Bit  
One LSB  
0000H  
FFFFH  
(µA)  
(mA)  
(mA)  
0.031  
–1.99997  
0
0.061  
–1.99994  
0
0.122  
–1.99988  
0
0.031  
–0.99997  
+1.00000  
0.061  
–0.99994  
+1.00000  
0.122  
–0.99988  
+1.00000  
NOTE: (1) +VCC must be at least +8.5VDC to allow output to swing to +6.0VDC.  
TABLE I. Digital Input to Analog Output Relationship.  
®
4
PCM54/55  
1234567...9

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