MITSUBISHI 〈DIGITAL ASSP〉 MITSUBISHI 〈DIGITAL ASSP〉 M66260FP M66260FP 8 CROSSPOINT × 4 CROSSPOINT SWITCH MIXING FUNCTION 8×4 SWITCH withwith MIXING FUNCTION DESCRIPTION The M66260 is an integrated circuit consisiting of a 8 × 4 cross point switch capable of selecting 32 analog switches with mixing registance respectively by serial control inputs. Using the M66260 with an external standard Op-Amp, 8 analog input signals can be mixed and output to any of 4 outputs freely by serial control inputs. PIN CONFIGURATION (TOP VIEW) CKS → 1 A→ 2 DIRECT-CONNECTED RD → 3 RESET INPUT X0 → 4 X2 → 5 SWITCH INPUT X4 → 6 X6 → 7 YOUT0 ← 8 YS0 ← 9 SWITCH OUTPUT YS1 ← 10 YOUT1 ← 11 GND 12 SHIFT CLOCK INPUT SHIFT DATA INPUT M66260FP FEATURES • Serial data input type • Switching and mixing function possible with standard OpAmp. • Switch matrix can be extended to 8 × 8 or 8 × 12 by combining 2 or 3 ICs in parallel. • Excellent crosstalk characteristic .......................... –90 dB [f = 3 kHz, VIN = –10dBV] (typ.) 24 23 22 21 20 19 18 17 16 15 14 13 VCC → SQ31 SHIFT DATA OUTPUT ← LE LATCH ENABLE INPUT ← X1 ← X3 SWITCH INPUT ← X5 ← X7 → YOUT3 → YS3 SWITCH OUTPUT → YS2 → YOUT2 VCC Outline 24P2N-B APPLICATION Line switching with mixing function of telephone and communication equipments. The 32 bits are stored into LATCH CIRCUIT in parallel when latch enable LE changes from “L” to “H”. Analog switches come on in a low-impedance state when the output of the corresponding latch circuit is “H”. They come off in a high-impedance stage when the output of the corresponding circuit is “L”. FUNCTION Serial data input A is the data input of the first step of 32 BIT SHIFT REGISTER and when latch enable input LE is “L”, the signal of A shifts shifting registers one by one when shift clock input CKs changes from “L” to “H”, in units of 32 bits. BLOCK DIAGRAM DIRECT RESET INPUT SWITCH INPUTS X4 X3 6 20 SWITCH OUTPUTS X7 18 YOUT0 YS0 YOUT1 YS1 YOUT2 YS2 YOUT3 YS3 X6 7 X5 19 X2 5 X1 21 X0 4 SHIFT CLOCK INPUT LATCH ENABLE INPUT CKS RD LE 1 3 22 SHIFT DATA INPUT A 2 R QL0 QL1 QL2 QL3 QL4 DIN 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 9 11 10 14 LE DL0 DL1 DL2 DL3 DL4 LATCH CIRCUIT (× 32) 23 22 21 20 19 18 17 CK QS0 QS1 QS2 QS3 QS4 32-BIT SHIFT REGISTER 16 Note 1: n 15 17 QLn QL30 QL31 31 30 29 28 27 26 25 DL30 DL31 24 16 13 12 GND VCC QS30 QS31 24 VCC n = 0~31 23 SQ31 SHIFT DATA OUTPUT 1 MITSUBISHI 〈DIGITAL ASSP〉 M66260FP 8 × 4 CROSSPOINT SWITCH with MIXING FUNCTION FUNCTION TABLES (1) 32-bit shift register (Note 2) Operation mode Shift Inputs RD × × A L H Internal outputs CKs ↑ ↑ LE L L QS0 L H QS1 Q0S0 Q0S0 QS2 Q0S1 Q0S1 QS3 Q0S2 Q0S2 LE × H L QL0 L QS0 Q0L0 QL1 L QS1 Q0L1 QL2 L QS2 Q0L2 QL3 L QS3 Q0L3 · · · · · · · · · · · · · · · QS29 Q0S28 Q0S28 QS30 Q0S29 Q0S29 QS31 Q0S30 Q0S30 QL29 L QS29 Q0L29 QL30 QL31 L QS31 Q0L31 (2) Latch circuit [× 32] (Note 2) Operation mode Reset Shift Inputs A × × × RD L H H Internal outputs CKs × L × · · · · · · · · · · · · · · · · · · · · L QS30 Q0L30 (3) 8 × 4 cross point switch QLn L H Status of switch No. n OFF ON Table 1. Latch Output (QLN) and Corresponding Switch No. n Latch output Switch No. QL0 0 QL1 1 QL2 2 QL3 3 · · · · · · · · · · QL29 29 QL30 30 QL31 31 Note 2: ↑ : Change from “L” to “H” × : “H” or “L” Q0S : The content of shift register before CKs changed Q0L : The content of latch circuit before LE changed from “H” to “L” OPERATION TIMING CHART RD 32 bits 32 bits CKs A 31 30 29 1 0 31 30 29 1 0 Set switch No. LE Switch on/off setting 2 Switch on/off setting Output SQ31 qs030 qs030 MITSUBISHI 〈DIGITAL ASSP〉 M66260FP 8 × 4 CROSSPOINT SWITCH with MIXING FUNCTION ABSOLUTE MAXIMUM RATINGS (Ta = –20°C to 75°C unless otherwise noted) Symbol Parameter VCC Supply voltage VI Input voltage RD, A, CKs, LE X0 ~ X7 VO Output voltage YS0 ~ YS3, YOUT0 ~ YOUT3 Pd Tstg Power dissipation Storage temperature Conditions Rating –0.5 ~ +7.0 –0.5 ~ VCC+0.5 –0.5 ~ VCC+0.5 Unit V –0.5 ~ VCC+0.5 V 500 –65 ~ 150 mW °C V RECOMMENDED OPERATIONAL CONDITIONS (Ta = –20°C to 75°C unless otherwise noted) Symbol VCC Parameter Supply voltage RD, A, CKs, LE VI Input voltage VO Output voltage Topr Operating temperature X0 ~ X7 Min. 2.8 0 0 YS0 ~ YS3, YOUT0 ~ YOUT3 Limits Typ. Unit Max. 5.5 VCC VCC 0 VCC –20 75 V V V °C ELECTRICAL CHARACTERISTICS (Ta = –20°C to 75°C, VCC = 2.8V ~ 5.5V and GND = 0V unless otherwise noted) Symbol Parameter VIH VIL VOL VOH “H” Input voltage “L” Input voltage “L” output voltage “H” output voltage RI Test conditions RD, A, CKs, LE Min. 0.8 × VCC Limits Typ. Max. 0.2 × VCC 0.55 Unit V V V V SQ31 IOL = +100µA IOH = –100µA Input resistance Xn→YSm n=0~7 m=0~3 VI (Xn) = 0.5 × VCC (For any one of switches) 15 25 40 kΩ Rf Feedback resistance YOUTm →Ysm VI (YOUTm) = 0.5 × VCC (For any one of switches) 15 25 40 kΩ ∆R Resistance difference (Rf and RI) (1 block) 0.9 1 1.1 — IOFF Off-state leakage current Switches off; VI∗ = VIH or VIL (for each of Xn, Ysm and YOUTm) 1.0 µA ICC IIH IIL CI Quiescent supply current “H” input current “L” input current Input capacitance VI∗ = VCC or GND VI∗ = VCC VI∗ = GND f = 1MHz 400 +1.0 –1.0 10 µA µA µA pF VCC – 0.8 VI∗ = VI (RD, A, CKs, LE) 3 MITSUBISHI 〈DIGITAL ASSP〉 M66260FP 8 × 4 CROSSPOINT SWITCH with MIXING FUNCTION TIMING CONDITIONS (Ta = –20°C to 75°C, VCC = 2.8V ~ 5.5V and GND = 0V unless otherwise noted) Symbol Parameter tC tw± (CKs) tw (LE) tw (RD) tsu (A – CKs) th (CKs – A) trec (CKs – LE) conditions Clock cycle Clock pulse width Latch enable pulse width Reset pulse width A setup time before CKS A hold time after CKS LE recovery time after CKS (Note 4) Limits Min. 1000 400 1000 1000 400 200 1000 Typ. Max. Unit ns ns ns ns ns ns ns SWITCHING CHARACTERISTICS (Ta = –20°C to 75°C, VCC = 2.8V ~ 5.5V and GND = 0V unless otherwise noted) Symbol Parameter tPLH tPHL Output “L-H” propagation time Output “H-L” propagation time Crosstalk freqency — conditions CKS-SQ31 CL = 10pF (Note 3) Limits Min. Typ. (Note 4) –90 Note 3: VIN = 10dBV, fIN = 3kHz Other inputs: 1kΩ at terminal Standard Op-Amp: M5228P (connected externally) RL = 10kΩ Crosstalk: 20 log 10 VO VI Note 4: TEST CIRCUIT Input PG VCC Output DUT CL 50Ω 4 (1) Pulse generator (PG) characteristics tr = tf = 6ns (10% ~ 90%) VIN = 0 to VCC (2) CL includes stray wiring capacitance and probe input capacitance. (3) Reference voltage Input voltage: 0.5 × VCC Output voltage: 0.5 × VCC Max. 600 600 Unit ns ns dB MITSUBISHI 〈DIGITAL ASSP〉 M66260FP 8 × 4 CROSSPOINT SWITCH with MIXING FUNCTION TIMING CHART RD tw(RD) tc CKs tw+(CKs) tw−(CKs) A tsu(A−CKs) th(CKs−A) trec(CKs−LE) tw(LE) LE SQ31 tPLH tPHL 5 MITSUBISHI 〈DIGITAL ASSP〉 M66260FP 8 × 4 CROSSPOINT SWITCH with MIXING FUNCTION LINE OUTPUT HOST PHONE SPEAKER OUTPUT EXTENSION 1 SPEAKER OUTPUT EXTENSION 2 SPEAKER OUTPUT + _ + _ + _ PLAYBACK INPUT DOOR PHONE INPUT ALARM INPUT EXTENSION 2 MICROPHONE INPUT EXTENSION 1 MICROPHONE INPUT HOST PHONE MICROPHONE INPUT LINE INPUT Vref OTHER APPLICATION EXAMPLE Cordless Telephone with Built-in Answering Machine (One host phone and two cordless extensions) 18 7 19 6 20 5 21 4 SHIFT CLOCK INPUT LATCH ENABLE INPUT DIRECT RESET INPUT 22 1 2 LE DL0 DL1 DL2 DL3 DL4 CK QS0 QS1 QS2 QS3 QS4 DIN 3 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 R QL0 QL1 QL2 QL3 QL4 9 11 10 14 32–bit shift register Latch circuit (× 32) 23 + _ SHIFT DATA INPUT 22 21 20 19 18 17 16 15 17 QL30 DL30 QL31 DL31 30 31 28 29 26 27 25 QS30 QS31 24 16 STANDARD Op-Amp 18 DOOR PHONE OUTPUT RECORDING OUTPUT OTHER + _ + _ + _ + _ 20 6 21 5 4 22 1 2 LE DL0 DL1 DL2 DL3 DL4 CK QS0 QS1 QS2 QS3 QS4 DIN 3 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 9 11 10 14 R QL0 QL1 QL2 QL3 QL4 Latch circuit (× 32) 23 OTHER 19 7 23 24 13 12 M66260FP 22 21 20 19 18 17 32–bit shift register 16 15 17 QL30 DL30 QL31 DL31 31 30 29 28 27 26 25 QS30 QS31 24 16 STANDARD Op-Amp 6 M66260FP 12 13 24 23