ZHCSPA8 数据表 | 德州仪器 TI.com.cn

ZHCSPA8 March 2024 AFE7950-SP

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4.12.8 RX Typical Characteristics at 800MHz

Typical values at T_A = +25°C, ADC Sampling Rate = 2949.12GHz. Default conditions: output sample rate = 491.52MSPS (decimate by 6), PLL clock mode with f_REF = 491.52MHz, A_IN = –3dBFS, DSA setting = 4dB.

With 0.8GHz matching, normalized to 830MHz

Figure 4-285 RX In-Band Gain Flatness for Channel 1RX, f_IN = 830MHz

With 0.8GHz matching, normalized to phase at 25°C

Figure 4-287 RX Input Phase vs Temperature and DSA at f_OUT = 0.8GHz

With 0.8GHz matching
Differential Amplitude Error = P_IN(DSA Setting – 1) – P_IN(DSA Setting) + 1

Figure 4-289 RX Calibrated Differential Amplitude Error vs DSA Setting at 0.8GHz

With 0.8GHz matching
Integrated Amplitude Error = P_IN(DSA Setting) – P_IN(DSA Setting = 0) + (DSA Setting)

Figure 4-291 RX Calibrated Integrated Amplitude Error vs DSA Setting at 2.6GHz

With 0.8GHz matching
Differential Phase Error = Phase_IN(DSA Setting – 1) – Phase_IN(DSA Setting)

Figure 4-293 RX Calibrated Differential Phase Error vs DSA Setting at 0.8GHz

With 0.8GHz matching
Integrated Phase Error = Phase(DSA Setting) – Phase(DSA Setting = 0)

Figure 4-295 RX Calibrated Integrated Phase Error vs DSA Setting at 0.8GHz

With 0.8GHz matching, 12.5MHz offset from tone

Figure 4-297 RX Noise Spectral Density vs Temperature at 0.8GHz

With 0.8GHz matching, 12.5MHz offset from tone

Figure 4-299 RX Noise Spectral Density vs Input Amplitude and Channel at 0.8GHz

With 0.8GHz matching, each tone –7dBFS, tone spacing = 20MHz

Figure 4-301 RX IMD5 vs DSA Setting and Temperature at 0.8GHz

With 0.8GHz matching, tone spacing = 20MHz, DSA = 12dB

Figure 4-303 RX IMD3 vs Input Level and Temperature at 0.8GHz

With 0.8GHz matching, measured after HD2 trim, DDC bypass mode (TI only mode for characterization)

Figure 4-305 RX HD2 vs DSA Setting and Channel at 0.8GHz

With 0.8GHz matching, measured after HD2 trim, DDC bypass mode (TI only mode for characterization)

Figure 4-307 RX HD2 vs Input Level and Temperature at 0.8GHz

With 0.8GHz matching, DDC bypass mode (TI only mode for characterization)

Figure 4-309 RX HD3 vs DSA Setting and Temperature at 0.8GHz

With 0.8GHz matching, DDC bypass mode (TI only mode for characterization)

Figure 4-311 RX HD3 vs Input Level and Temperature at 0.8GHz

With 0.8GHz matching, –7dBFS each tone, 20MHz tone spacing, all supplies at MIN, TYP, or MAX recommended operating voltages

Figure 4-313 RX IMD3 vs Supply and Channel at 0.8GHz

With 0.8GHz matching, 12.5MHz offset, all supplies at MIN, TYP, or MAX recommended operating voltages

Figure 4-315 RX Noise Spectral Density vs Supply and Channel at 0.8GHz

With 0.8GHz matching, normalized to fullscale at 25°C for each channel

Figure 4-286 RX Input Fullscale vs Temperature and Channel at 800MHz

With 0.8GHz matching
Differential Amplitude Error = P_IN(DSA Setting – 1) – P_IN(DSA Setting) + 1

Figure 4-288 RX Uncalibrated Differential Amplitude Error vs DSA Setting at 0.8GHz

With 0.8GHz matching
Integrated Amplitude Error = P_IN(DSA Setting) – P_IN(DSA Setting = 0) + (DSA Setting)

Figure 4-290 RX Uncalibrated Integrated Amplitude Error vs DSA Setting at 0.8GHz

With 0.8GHz matching
Differential Phase Error = Phase_IN(DSA Setting – 1) – Phase_IN(DSA Setting)

Figure 4-292 RX Uncalibrated Differential Phase Error vs DSA Setting at 0.8GHz

With 0.8GHz matching
Integrated Phase Error = Phase(DSA Setting) – Phase(DSA Setting = 0)

Figure 4-294 RX Uncalibrated Integrated Phase Error vs DSA Setting at 0.8GHz

With 0.8GHz matching, f_IN = 840MHz, A_IN= –3dBFS

Figure 4-296 RX Output FFT at 0.8GHz

With 0.8GHz matching, DSA Setting = 12dB, 12.5MHz offset from tone

Figure 4-298 RX Noise Spectral Density vs Input Amplitude and Temperature at 0.8GHz

With 0.8GHz matching, each tone –7dBFS, tone spacing = 20MHz

Figure 4-300 RX IMD3 vs DSA Setting and Temperature at 0.8GHz

With 0.8GHz matching, tone spacing = 20MHz, DSA = 4dB

Figure 4-302 RX IMD3 vs Input Level and Temperature at 0.8GHz

With 0.8GHz matching, tone spacing = 20MHz, DSA = 12dB

Figure 4-304 RX IMD5 vs Input Level and Temperature at 0.8GHz

With 0.8GHz matching, measured after HD2 trim, DDC bypass mode (TI only mode for characterization)

Figure 4-306 RX HD2 vs DSA Setting and Temperature at 0.8GHz

With 0.8GHz matching, DDC bypass mode (TI only mode for characterization)

Figure 4-308 RX HD3 vs DSA Setting and Channel at 0.8GHz

With 0.8GHz matching, DDC bypass mode (TI only mode for characterization)

Figure 4-310 RX HD3 vs Input Level and Channel at 0.8GHz

With 0.8GHz matching

Figure 4-312 RX Non-HD2/3 vs DSA Setting at 0.8GHz

With 0.8GHz matching, –7dBFS each tone, 20MHz tone spacing, all supplies at MIN, TYP, or MAX recommended operating voltages

Figure 4-314 RX IMD5 vs Supply and Channel at 0.8GHz