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PCD3316T 数据表(PDF) 19 Page - NXP Semiconductors |
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PCD3316T 数据表(HTML) 19 Page - NXP Semiconductors |
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19 / 30 page  Philips Semiconductors PCD3316 CIDCW receiver Product specification 11 March 1999 19 of 30 9397 750 04824 © Philips Electronics N.V. 1999. All rights reserved. FSK receiver (pins FSKIN+ and FSKIN −) Zi input impedance FSKIN+ to FSKIN −− 1.4 − M Ω Zsource(max) maximum source impedance −− 200 k Ω Pi(FSKIN) input signal power in 600 Ω load [8] −50 − 0 dBm S/NFSK signal-to-noise ratio 200 to 3400 Hz 20 −− dB |Vdif| differential voltage between mark and space (twist) −− 10 dB f(D) data transmission rate frequency 1180 1200 1212 bits/s fs space frequency 2068 − 2222 Hz fm mark frequency 1188 − 1320 Hz CAS detector (pin CASIN) Zi input impedance CASIN to Vref − 1.4 − M Ω Zsource(max) maximum source impedance −− 200 k Ω Pi input signal power in 600 Ω load [8] −37.8 − 0 dBm THns(CAS) no signal threshold (CAS) in 600 Ω load −43.8 −−37.8 dBm fl low tone frequency − 2130 − Hz fh high tone frequency − 2750 − Hz ∆fmax maximum frequency deviation [9] −0.5 − +0.5 % Vdif differential voltage level (twist) [9] −− 6dB tdt dual tone detection time 60 −− ms I2C-bus interface (pins SCL and SDA) [10]; see Figure 14 VIL LOW-level input voltage [11] 0 − 0.3VDD V VIH HIGH-level input voltage [11] 0.7VDD − VDD V IOL1 LOW-level output current for pin SDA VO(SDA) = 0.4 V 2 −− mA Ci input capacitance for each I/O pin −− 10 pF fSCL SCL clock frequency −− 100 kHz tBUF bus free time 4.7 −− µs tSU;STA START condition set-up time 4.7 −− µs tHD;STA START condition hold time 4.0 −− µs tLOW SCL LOW time 4.7 −− µs tHIGH SCL HIGH time 4.0 −− µs tr maximum SCL and SDA rise time [12] −− 1000 ns tf maximum SCL and SDA fall time [12] −− 300 ns tSU;DAT data set-up time 250 −− ns tHD;DAT data hold time 0 −− ns tVD;DAT SCL LOW to data out valid time −− 3.4 µs tSU;STO STOP condition set-up time 4.0 −− µs Table 18: Characteristics…continued VDD = 2.5 to 3.6 V; Tamb = −25 to +70 °C; HXIN = 3.579545 MHz ±0.05%; LXIN = 32.768 kHz ±0.1%; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit |
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