【应用】圣邦微16位DAC SGM5353-16用于GPS设备，工作温度范围内INL为1LSB

时间： 2022-12-15 来源：世强

技术问答

GPS是利用到达时间TOA（Time of arrival）测距原理确定用户接收机位置和授时的，这种原理是让已知位置的信号源定时发出信号,接收机则记下信号到达的时间。如果采用晶振的信号源的时钟和接收机的时钟是完全同步的,则只要将信号的转播速度乘以信号的转播时间就可求出信号源到接收机之间的距离。GPS时钟对精度要求很高，GPS定位系统基本上都会要用到恒温晶振，来保持自身的温度恒定，避免因周围温度变化而造成的影响。

通过改变恒温晶振的控制电压来微调晶振的输出频率以到达高精度的时钟信号，控制过程如下：主控MCU给出一个调整信号通过DAC输出目标电压信号，再经过低噪放大器放大电压信号给到恒温晶振进行频率的微调。如图1，仅供参考。

GPS时钟控制框图

图1. GPS时钟控制框图

本文推荐采用SGMICRO推出的16-Bit DAC SGM5353-16（ON号：SGM5353-16XS8G/TR），单调输出，工作温度范围内是1LSB积分非线性（INL），降低偏移误差，满足高精度性能场景的要求。

该产品特性参数如下：

1、宽工作电压：2.7V to 5.5V

2、输出是单调的，在整个工作温度范围内是1LSB积分非线性（INL），大大降低了偏移误差。

3、超低功耗：0.39mW (TYP)，适合移动设备长时间工作

4、三线SPI串行通信，通信速率25MHz

5、输出电压：0V to Vref

6、工作温度：-40 to 125℃

图2. SGM5353-16功能框图

图3. SGM5353-16经典连接图

图二为SGM5353的功能框图，方便大家对该芯片内部有个直观的认识。图三为SGM5353的经典连接图，可以提升DAC的驱动能力，方便大家在设计时做参考。

综上所述，SGMICRO推出的16位DAC SGM5353-16XS8G/TR非常适用于GPS。

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SGMICRO（圣邦微）信号链和电源管理芯片选型指南

描述- SGMICRO specializes in high-performance and high-quality analog and mixed-signal integrated circuits, and is committed to building a comprehensive portfolio of the highest quality analog and mixed-signal integrated circuits to address all customer needs.

型号- 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

选型指南 - SGMICRO - 2024/6/11 PDF 英文下载

【选型】圣邦微新推出的超小体积单通道DAC SGM5351可P2P替换TI的DAC8551

圣邦微新近推出了一款16位精密、电压输出型数模转换器（DAC）SGM5351与TI的DAC8551功能相同、相关参数相同，在大封装上，尺寸及脚序也完全相同，所以，国产圣邦微DAC芯片SGM5351可P2P替换DAC8551；而且，SGM5351还支持WLCSP-1.16x0.76-6B封装，体积更小，这让SGM5351拥有更广的应用范围。

器件选型发布时间 : 2021-07-08

SGMICRO-TI/ADI/MAXIM/MPS/SILERGY/ST等信号链电源芯片对照表

描述- 圣邦微SGMICRO与TI/ADI/MAXIM/LT/Onsemi/ST/Microchip/Nexperia/MPS/TOSHIBA/ROHM/RICHTEK/SILERGY/ABLIC/Renesas/Diodes/NXP/NJM/Infineon/Allegro 等品牌的信号链、电源芯对照表。

型号- SY8388,SN74HC541,A3981,IR44273,74AVC8T245Q,TS3A24159,TS3A24157,FAN3100,SLG88103,ADA4622-2,SLG88104,ADA4622-1,SGM2560,NA199,SGM2564,TSL6002,LMR23620,SGM48017C,LM431,FAN49103,MAX4282,SGM61220,BD9A201,74HC595,TLV3542,TLV3541,TS3A4751,TLV522,LMR23630,FAN53611,TC7SZ14FU,74LCX04,NCS21803,HCF4051,NCS21801,HCF4052,74LCX08,HCF4053,TSC214I,TLV3544,LMP2022,TSB611,NL27WZ04,SGM2588,FAN53601,SN74HC573,SN74HC574,INA333,TSU101,TSC213I,TSU102,NTMFS4C10N,UCC27531-Q1,TSU104,RT8293,74HC573,74HC574,SGM621,RT8290,SGM41600,TSB621,SGM620,SGM2572,SGM41603,SGM2571,SGM2576,SGM2575,SGM2578,SGM8T245S,RT8296,NL17SG07,SGM8557-1,TSU111,SGM8557-2,TSU112,ESD103-B1-02,INA321,TLV2242,TLV2241,SGM2205-12XK3G,ISL28118,OPA2277,BU30TD2,LM5109,BQ25619,SGM48013C,BQ25618,INA317,BQ25611,SGM62110,SGM62112,FSA4157,TPS76933,SGM2593,XB6091IS,BQ25601,TPS76950,BQ25600,SGM61230,TXS0104,TXS0102,SGM61232,SGM61234,TLV8801,TXS0101,SGM61233,74HC123,SGM5349-16,TLV62084,SGM431V,LTC2054,TPS51200,LTC2050,TLV8812,TLV8811,SGM61235,TLV8802,RT8253,BD9D323,BD9D322,AD5541,PMPB27EP,TPS54302,SGM4553YXET,LM7322,SGM8706,LM7321,SGM8707,SGM8701,MAX4664,LPV7215,SGM12UB1D2,AP2191,SGM3001,SGM42513,74LVC245A,SGM3005,TPS61099,SGM3002,SGM8276-2,TPS7A8300,SGMOP17C,TPS2553,ISL28130,TPS2556,TPS2557,SGM42403Q,SGM42553,BD6222,SGM8255B-2,ISL28134,74AHC1G08GV,TPS2551,74HC165,SGM62116,SGM62118,SGM62117,TPS3852-Q1,MAX4684,74HC164,AP2172,A3916,AP2171,TPS560430,A3918,BQ25638,SGM8709,U74LVC126,MP8676,SGM61280,MCP6V16,SGM42544,NCP718,LMX331,LMR36520,LM27761,TC7SZ32FU,SN74LVTH162373,ADM708,ADM707,SGM38042,SGM38046,TPS54340,MAX4230,TPS3823,LM2904,TC74VHC138,LM2902,LM2903,SGM8740,SGM2077A,SGM8742,SGM2077B,SGM8743,PESD5V0F1BSF,SGM41515A,MIC5209,LPV802,LPV801,SGM8748,SGM8749,NLAS44599,TPS54336,SGM40666A,SGM8746,TC74VCX16245,TPS54331,74LCX32,TPS54335,SGM41513D,SGM41513A,MCP6406,FTL75939,OPA548,SGM8957-1,MCP6402,SGM8957-2,TLV6208,SGM5223,MAX4232,TC74LCX16244,MAX4231,TPS3808,SN74LVC2T45,OPA2333P,MAX4236,SGM8551XN,TPS3840,TPS54320,SGM48018C,OPA990,RT4730,SGM41512A,SGM8745X,SN74AHC1,MAX9938,74LVTN16244,74LVTN16245,LPV821,SGM48019C,MCP6V52,MCP6V51,RT4723,OPA2210,TLV755P,SN74AC244,MCP6V54,AW2027,SGM8604-2XTDU8G,SGM8750,LPV812,LPV811,AD8534,SGM41283,SGM5353-16,AP2120,AD8539,AD8538,74LVC125,MCP6V69,74LVC126,SGM41285,DRV8313,MCP6V67,SN74LVC2G66,SGM7SZ244S,CAT4104,TS321,SGM8429C-4,AD5593R,SGM61430A,MP28373,MP5121,TMP108,74LVT16373,SGM8304,MAX40078,AD8541,74LVT16374,MCP6442,TMP103,TMP102,MP9943,MP9942,AP2112,MCP6V79,NCV890100,SGM13003A,MCP6V76,STSPIN250,MCP6V77,74LVTH125,SGM8770,AP2114,SGM38042B-1,LM2841,AD8513,AD621,AD620,NCS20034,SGM65230,NCS20032,AD623,AD8515,SGM65231,AD627,TC7SPN334,SGM13002A,SGM8477-1,SGM2035C,SGM41291,SGM2036S,MCP6V96,TUSB320,74LVC138,SGM7SZ245S,SGM8958-2,SGM41296,SN74CBT3245,MP9928,SGM41298,SGM8958-1,SGM6132,MAX4736,SGM6130,AD8532,AD8531,MAX4730,TPS3422,SGM833A,MCP6472,SGM833B,TLV1702,SGM7SZ32,SQ27403,MC74LVC74,TPS3420,TPS3421,TP2011,SGM2037H,MUX36S08,BISS0002,MC74AHC08,74LVC373A,TPS2595XXDSG,MCP6001,TPS3895,AD8502,TPS3896,TPS3897,AD8500,MCP6002,TPS3898,AP2151,SGM41282C,TPS3899,AD8506,AD8505,TLV7021,SGM832A,TP2025,MC33074,TP2021,MCP6004,MCP6006,LT7183,74LVC374A,AP2141,SN74LVC2G04,MCP6492,74LVC1G126,74LVC1G125,SGM48535B,SGM7SZ14,SGM48535A,SGM48752X,TPS2596,BU28TD2WNVX,AS179,XC6201,SGM15CB1A4,XC6206,TC7WZ04,SN74LVC2G14,MCP6022,SGM2210P,SGM7SZ08,MCP6024,SGM834A,SN74LVC2G17,MCP6021,SGM834B,SGM7SZ04,MP2497,SGM7SZ00,IRL44273LPBF,SGM48753X,SGM48754X,AD5592R,TLV61046A,TPS7A8400,SGM48753,SY8301,SGM48754,SQ24335,SGM2211S,SGM48757,ISL21080,SGM48759,SY8303,MCP6032,MCP6031,SGM48751,SGM48752,SGMNQ07430,SGM61720,TSV911,TSV912,TSV914,SN74AVC16T245,MP2490,SGM05UB1B3,LPV324,OPA4379,OPA4374,HD3SS3412,MCP6044,OPA4376,OPA2192,MCP6041,74VHC244,LMR16030,74AHCT595,APD7118,OPA2197,TPS62730,MCP6042,OPA2196,SN74AVC8T245,SN74LVC157,OPA2191,ADG509,ADG508,SGM8478-1C,FSA2457,TMUX415,TC7SZ00,LM1117,AD8599,TPS62743,TSV6192,SN74LVC125,SGM706S,SN74LVC126,RT6160,TPS76901,TC7SZ07,SGM2564A,TLV707P,NTMFS4C06N,MP2451,TS393,LMH6643,TC74VCX164245,SN74LVC138,SGM48760,SGM25662,MIC708,MCP6061,MP2460,LME49726,RT6150,MIC706,SN74AHCT86,MCP6074,TC7SH125F,STSPIN220,APD196,SGMOP07,74HC541,TC7SET08,LMC7211,BQ25890H,MAX706,MAX9119,MAX708,MCP6071,SGM2566C,74AHC573D,TC7SZ32,BU33TD2,74LVC157,YDA145,BD9G341,SGM2567S,NJMOP2277,INA828,LPV358,NCP382,NE5532,SGM2217Q,LMG1025-Q1,NCV6324,SGMNQ40430,NCV6334,SGM48536BQ,SGM21102G,74AHCT86,BGA524N6,SGM21102C,FSA2466,SGM21102B,INA818,SGM21102A,SGM05FB1E2,SN74AHC244,TLV74118,TC7SZ32F,NC7WZ04,74AVC8T245BQ,TSV991,TSV992,TSV994,SGM3851A,SGM48536CQ,TC913,74AHC244,AD8571,74AVC2T45,SGM2521A,TLV74128,SN74LVC541,AZ1117,LMV881,BU28TD2,MAX14589,TLV2316,SGM61330,SGM724,TS5V330,SGM5209-14,74LV541A,SGM3758,NJU7076,MAX4163,MAX4162,PESD15VW1BCSF,TLV74133,TPS25921A,OP213,TLV74130,SGM722,TLV2333,SGM723,SGM721,SGM8610-2,NLAS3899,OPA2140,EL5420,MAX4174,MAX4173,SGM15UB1E2,TC7SH126FU,SGM41100A,SGM61310,SKY13351,A4980,SGM41100V,SGM61306,SGM61305,SGM61308,SGM61307,SGM8262-2,TC7PZ14,SGM3795,74LCX126,74LCX125,74LVC541A,SGM3799,SA4159

对照表 - SGMICRO

SGMICRO（圣邦微）ADC/DAC选型指南

型号- SGM51242R8,SGM5353-16,SGM8634C,SGM71612R82Z,SGM71612R81ZXG/TR,SGM51652H8,SGM58200,SGM61720,SGM5209-14,SGM58201,SGM71612R82,SGM51652H4,SGM42403,SGM452,SGM5347-12,SGM51652H4XTS38G/TR,SGM51652HXTS16G-S/TR,SGM58602,SGM71612R82M,SGM2048,SGM58600,SGM71612R81,SGM58601,SGM5347-10,SGM58031Q,SGM42402,SGM42401,SGM8T245XS,SGM71612R81Z,SGM48751X,SGM12UB1D2,SGM51652HX,SGM4029A,SGM6143X,SGM4573,SGM7SZ244,SGM8253,SGM2033,SGM51242R4,74LVC245A,SGM51652H4XTS38G-S/TR,SGMXXXXX,SGM51242R2,SGM58600XTRL20G/TR,SGM5351-16,SGM61030,SGM51622S8XLFH64G/TR,SGM4875XX,SGM58600XSS20G/TR,SGM25701,SGM8270,SGM51610S,SGM58601XSS28G/TR,SGM2050,SGM58031,SGM5200,SGM862,SGM71612R8XX,SGM6130X,SGM2054,SGM860,SGM8277,SGM,SGM51622H,SGM204X,SGM2059,SGM51622D,SGM51610C,SGM89XB,SGM5202-14,74AHC14,SGM61410,SGM5353,SGM51613HXTS16G/TR,SGM71612R8,SGM51652HBXTS38G-S/TR,74AHC08,SGM61411,SGM5208-14,SGM8610,SGM51652H,SGM58601XTQK28GITR,SGM71612R81ZXTSG16G/TR,SGM51652D,SGM5348-10,SGM51652S8XLFH64G/TR,SGM5348-8,SGM5348-12,SGM5349,SGM5355-16,GRM2030,SGM51613HXTQE16G/TR,SGM823,SGM61630,SGM71612R81ZXTS16G/TR,SGM51613H,SGM51622S8,SGM5349-16,SGM8249,SGM51613D,SGM8255B,SGM5860X,SGM5352-16,SGM05FB4D2,SGM4027A,SGM51652H8XTS38G/TR,SGM4551,SGM05FB8D2,SGM5200Q,SGM51652S8,SGM5347-8,SGM80XB

选型指南 - SGMICRO - May 2024 PDF 英文下载

SGMICRO-TI/ADI/富士通数模转换器对照表

描述- 圣邦微与TI/ADI/富士通数模转换器对照表，提供多通道高精度DAC

型号- SGM71612R83MXTSG16G/TR,AD5541,DAC088S085,SGM5347-8XS16G/TR,AD5668,SGM5349A-16XTS16G/TR,SGM71612R82ZXTSG16G/TR,SGM5349A-16XTQE16G/TR,SGM5348-12XTS16G/TR,SGM5351-16XMS8G/TR,SGM5347-12XS16G/TR,SGM5347-12XTS16G/TR,MB88347,SGM71612R81ZXG/TR,SGM71612R82ZXTS16G/TR,SGM71612R81ZXTS16G/TR,SGM71612R83MXTS16G/TR,DAC8830,DAC8551,SGM5353-16XS8G/TR,SGM71612R82ZXG/TR,SGM5347-8XTS16G/TR,SGM71612R82MXTSG16G/TR,SGM5348-12XTQ16G/TR,SGM71612R81ZXTSG16G/TR,DAC8568,SGM71612R82MXTS16G/TR,DAC128S085

对照表 - SGMICRO

SGM5349A-16 8-CH, 16-Bit, SPI Interface,Voltage-Output DAC

型号- SGM5349A-16XTS16G/TR,SGM5349A-16XTQE16G/TR,SGM5349A-16

数据手册 - SGMICRO - JANUARY 16,2020 PDF 英文下载

【经验】圣邦微新推出的16位DAC芯片SGM5352驱动代码编程注意要点

圣邦微新推出了一款 16 位、4 通道、电压输出型数模转换芯片 (DAC) SGM5352 ，具有精度高、多通道、体积小等优点，非常适宜应用在光模块、信号发生器等产品上，深受广大工程师们的喜爱。为了让大家能够顺利、快速地开发出它的驱动代码，如下，本文总结了5个要点，可供大家参考。

设计经验发布时间 : 2021-07-14

SGM5355-16 16-Bit, I²C Interface, Voltage-Output Digital-to-Analog Converter

型号- SGM5355-16,SGM5355-16XMS8G/TR,SGM5355-16XG/TR

数据手册 - SGMICRO - REV. A. 2 - SEPTEMBER 2023 PDF 英文下载查看更多版本

SGM71622R8/SGM71622R8A/SGM71622R8B 8-Channel, 16-Bit, SPI, Voltage-Output DAC with Internal Reference

型号- SGM71622R8,SGM71622R8ZXTUC16SG/TR,SGM71622R8ZXTUD16SG/TR,SGM71622R8MXSG/TR,SGM71622R8MXTUD16G/TR,SGM71622R8ZCXTUD16G/TR,SGM71622R8MXG/TR,SGM71622R8M,SGM71622R8MXTUD16SG/TR,SGM71622R8ZXTUD16G/TR,SGM71622R8ZCXTUD16SG/TR,SGM71622R8MXTUC16SG/TR,SGM71622R8Z,SGM71622R8ZCXTUC16SG/TR,SGM71622R8ZCXTUC16G/TR,SGM71622R8ZCXG/TR,SGM71622R8ZC,SGM71622R8ZXSG/TR,SGM71622R8MXTUC16G/TR,SGM71622R8ZXG/TR,SGM71622R8B,SGM71622R8A,SGM71622R8 FAMILY,SGM71622R8ZCXSG/TR,SGM71622R8ZXTUC16G/TR

数据手册 - SGMICRO - REV. A - JULY 2024 PDF 英文下载

SGMICRO数模转换器选型表

16位高分辨率，1-8通道，外置参考源

Output Voltage Range(V)

Output Settling Time(μs)

选型表 - SGMICRO 立即选型

SGMICRO数模转换器DAC选型表

圣邦微提供以下技术参数的DAC，1~8通道，90K~200KSPS，8bit~16bit，高稳定性

产品型号	品类	Package	Resolution	Update Rate	Out Channels
SGM5347-8XTS16G/TR	DAC	TSSOP-16	8	90K	8

选型表 - SGMICRO 立即选型

SGM71612R81/SGM71612R82/SGM71612R83 8 Channels, 16-Bit, SPI Interface, Voltage-Output DAC with 10ppm/°C On-Chip Reference

型号- SGM71612R83MXTSG16G/TR,SGM71612R81ZXSG/TR,SGM71612R82ZXSG/TR,SGM71612R82ZXTSG16G/TR,SGM71612R82ZXTS16SG/TR,SGM71612R82Z,SGM71612R81ZXG/TR,SGM71612R82ZXTS16G/TR,SGM71612R83,SGM71612R83 FAMILY,SGM71612R82,SGM71612R81ZXTS16G/TR,SGM71612R82MXTSG16SG/TR,SGM71612R83MXTS16G/TR,SGM71612R82 FAMILY,SGM71612R82M,SGM71612R81 FAMILY,SGM71612R81,SGM71612R81ZXTS16SG/TR,SGM71612R82ZXTSG16SG/TR,SGM71612R82ZXG/TR,SGM71612R82MXTS16SG/TR,SGM71612R81Z,SGM71612R82MXTSG16G/TR,SGM71612R83MXTSG16SG/TR,SGM71612R83MXTS16SG/TR,SGM71612R81ZXTSG16G/TR,SGM71612R82MXTS16G/TR,SGM71612R83M,SGM71612R81ZXTSG16SG/TR

数据手册 - SGMICRO - REV.A.2 - APRIL 2024 PDF 英文下载